404keylogger | 3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c

Analysis

max time kernel
296s
max time network
297s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
06/06/2024, 21:48

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General

Target

3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
Size

747KB
MD5

3cd2595e3d20f8200d3ddf84b81932de
SHA1

c05f5a5fd2e0da7be16621a5482541f3d492891c
SHA256

3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c
SHA512

fbc314a53bb2eeba48c0cf5793cc93b1f9361e62aa38de34c941d57bb677b0868e651ed46b783fef939c4b9659048b4a555c3e647201aae7ce1f9e9bf0731670
SSDEEP

12288:H7nYP1+rSlwFON6zXeEt+f2VtTwfyfyp4P7r9r/+ppppppppppppppppppppppp0:HDYP1+rDOkKderNqS1qU

Score

10^/10

404keylogger formbook cix collection keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

cix

Decoy

stephaniperold.com

sorairo12.com

palumasteknik.com

marketing4proptech.com

iwanttoheargod.com

structured-waters.com

sunvalleyvacations.net

sanketweb.com

tmasco.com

d-valentine.com

engmousavi.com

lithiumtolashes.com

texastramper.com

shoemall.store

beginningguitarbook.com

wonderlustnfairytales.com

bizinabox.store

kmacg.net

cashgold4cash.com

smtpguide.com

Signatures

404 Keylogger
Information stealer and keylogger first seen in 2019.
stealer keylogger 404keylogger

404 Keylogger Main Executable 2 IoCs

resource	yara_rule
behavioral1/files/0x0007000000023423-22.dat	family_404keylogger
behavioral1/memory/3868-47-0x0000000000620000-0x000000000063E000-memory.dmp	family_404keylogger

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/948-57-0x0000000000400000-0x00000000004BE000-memory.dmp	formbook
behavioral1/memory/948-64-0x0000000000400000-0x00000000004BE000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\O8EXONWH5BN = "C:\\Program Files (x86)\\Ufh-\\autochkhli4ans.exe"	systray.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	systray.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe

Executes dropped EXE 3 IoCs

pid	Process
1468	Coseismic.scr
3868	Payment receipt.exe
948	Coseismic.scr

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment receipt.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment receipt.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment receipt.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\plymouthism = "wscript \"C:\\Users\\Admin\\Pinatype\\Coseismic.vbs\""	Coseismic.scr

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
13	checkip.dyndns.org

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 948 set thread context of 3404	948	Coseismic.scr	56
PID 4384 set thread context of 3404	4384	systray.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Ufh-\autochkhli4ans.exe	systray.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\win.ini	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
File opened for modification	C:\Windows\win.ini	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
File opened for modification	C:\Windows\win.ini	Coseismic.scr
File opened for modification	C:\Windows\win.ini	Coseismic.scr

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	systray.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
948	Coseismic.scr
948	Coseismic.scr
948	Coseismic.scr
948	Coseismic.scr
3868	Payment receipt.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe
4384	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
948	Coseismic.scr
948	Coseismic.scr
948	Coseismic.scr
4384	systray.exe
4384	systray.exe

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeDebugPrivilege	3868	Payment receipt.exe
Token: SeDebugPrivilege	948	Coseismic.scr
Token: SeDebugPrivilege	4384	systray.exe
Token: SeShutdownPrivilege	3404	Explorer.EXE
Token: SeCreatePagefilePrivilege	3404	Explorer.EXE
Token: SeShutdownPrivilege	3404	Explorer.EXE
Token: SeCreatePagefilePrivilege	3404	Explorer.EXE
Token: SeShutdownPrivilege	3404	Explorer.EXE
Token: SeCreatePagefilePrivilege	3404	Explorer.EXE
Token: SeShutdownPrivilege	3404	Explorer.EXE
Token: SeCreatePagefilePrivilege	3404	Explorer.EXE
Token: SeShutdownPrivilege	3404	Explorer.EXE
Token: SeCreatePagefilePrivilege	3404	Explorer.EXE

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2720	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
4828	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
1468	Coseismic.scr
948	Coseismic.scr
3868	Payment receipt.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3404	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 4828	2720	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	84
PID 2720 wrote to memory of 4828	2720	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	84
PID 2720 wrote to memory of 4828	2720	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	84
PID 4828 wrote to memory of 1468	4828	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	87
PID 4828 wrote to memory of 1468	4828	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	87
PID 4828 wrote to memory of 1468	4828	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	87
PID 4828 wrote to memory of 3868	4828	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	89
PID 4828 wrote to memory of 3868	4828	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	89
PID 4828 wrote to memory of 3868	4828	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	89
PID 1468 wrote to memory of 948	1468	Coseismic.scr	90
PID 1468 wrote to memory of 948	1468	Coseismic.scr	90
PID 1468 wrote to memory of 948	1468	Coseismic.scr	90
PID 3404 wrote to memory of 4384	3404	Explorer.EXE	93
PID 3404 wrote to memory of 4384	3404	Explorer.EXE	93
PID 3404 wrote to memory of 4384	3404	Explorer.EXE	93
PID 4384 wrote to memory of 3896	4384	systray.exe	97
PID 4384 wrote to memory of 3896	4384	systray.exe	97
PID 4384 wrote to memory of 3896	4384	systray.exe	97
PID 4384 wrote to memory of 3580	4384	systray.exe	107
PID 4384 wrote to memory of 3580	4384	systray.exe	107
PID 4384 wrote to memory of 3580	4384	systray.exe	107

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment receipt.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Payment receipt.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3404
- C:\Users\Admin\AppData\Local\Temp\3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
  "C:\Users\Admin\AppData\Local\Temp\3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Users\Admin\AppData\Local\Temp\3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
    "C:\Users\Admin\AppData\Local\Temp\3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe"
    3⤵
    - Checks computer location settings
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4828
  - - C:\Users\Admin\Pinatype\Coseismic.scr
      "C:\Users\Admin\Pinatype\Coseismic.scr" /S
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Drops file in Windows directory
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1468
    - - C:\Users\Admin\Pinatype\Coseismic.scr
        
        "C:\Users\Admin\Pinatype\Coseismic.scr" /S
        5⤵
        Executes dropped EXE
        Suspicious use of SetThreadContext
        Drops file in Windows directory
        Suspicious behavior: EnumeratesProcesses
        Suspicious behavior: MapViewOfSection
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:948
  - - C:\Users\Admin\Payment receipt.exe
      "C:\Users\Admin\Payment receipt.exe"
      4⤵
      Executes dropped EXE
      Accesses Microsoft Outlook profiles
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      outlook_office_path
      outlook_win_path
      PID:3868
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Adds policy Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4384
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\Pinatype\Coseismic.scr"
    3⤵
    PID:3896
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:3580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
46KB

MD5
8f5942354d3809f865f9767eddf51314

SHA1
20be11c0d42fc0cef53931ea9152b55082d1a11e

SHA256
776ecf8411b1b0167bea724409ac9d3f8479973df223ecc6e60e3302b3b2b8ea

SHA512
fde8dfae8a862cf106b0cb55e02d73e4e4c0527c744c20886681245c8160287f722612a6de9d0046ed1156b1771229c8950b9ac036b39c988d75aa20b7bac218

Download Submit
C:\Users\Admin\AppData\Roaming\NN42N073\NN4logim.jpeg

Filesize
83KB

MD5
a0ca351d1e92fa9e124a3ccd13193b14

SHA1
643f41225e4d8c519f193fae23a12470c4b5c3d4

SHA256
d0e0b38cdce2d5e3ec2492e718db67a1ca2fe793dc8ef4b21e75332e0bc2e8cc

SHA512
6fe9b8d1fd62e1421f1449c6fa215e2e98e8e72a6ce1f1394432f48fd0203c98e833fef117793d99dd83776637bfa4fff96f61825a5c7f6984daa9031c7e6c94

Download Submit
C:\Users\Admin\AppData\Roaming\NN42N073\NN4logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\NN42N073\NN4logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\NN42N073\NN4logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
C:\Users\Admin\Payment receipt.exe

Filesize
98KB

MD5
f064015d967ac5fbedbe21c01689f388

SHA1
4f2044ea34938b045c5e62c389f3c62c44cb5392

SHA256
980563afc8a4af6029ef7266392765e4ed9cf23eb242078701b65f5d9078b0af

SHA512
2bf694bbada5bc84ec2e68b4b8e4a6c3b747c14e5e4f5aae0d25c5c94a44ed3df16b2384a966da9ce1d405441eb2727af22868204cca0a2b157a7ae0efedd67f

Download Submit
C:\Users\Admin\Pinatype\Coseismic.scr

Filesize
747KB

MD5
3cd2595e3d20f8200d3ddf84b81932de

SHA1
c05f5a5fd2e0da7be16621a5482541f3d492891c

SHA256
3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c

SHA512
fbc314a53bb2eeba48c0cf5793cc93b1f9361e62aa38de34c941d57bb677b0868e651ed46b783fef939c4b9659048b4a555c3e647201aae7ce1f9e9bf0731670

Download Submit
C:\Windows\win.ini

Filesize
123B

MD5
6bf517432f65eb7f0d18d574bf14124c

SHA1
5b9f37c1dd1318ebbec3bd2f07c109eb9d22c727

SHA256
6e2b70dfccabf3cc651545676a3a566c9cfae03f15f772886646abce1da35b46

SHA512
7b0cb8c20034585ec8bf4b45eda5eda5993a56e24931a7426dc5a9f081ec1f82545f3e26a48a4df885c8691fc6e8026d0808aebe3cc3358ba85ddca08ac4cb06

Download Submit
memory/948-58-0x0000000002130000-0x000000000213A000-memory.dmp

Filesize
40KB

Download
memory/948-64-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/948-57-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/2720-3-0x0000000000610000-0x000000000061A000-memory.dmp

Filesize
40KB

Download
memory/2720-4-0x00000000772A1000-0x00000000773C1000-memory.dmp

Filesize
1.1MB

Download
memory/3404-68-0x0000000008570000-0x00000000086D1000-memory.dmp

Filesize
1.4MB

Download
memory/3868-49-0x00000000050D0000-0x000000000516C000-memory.dmp

Filesize
624KB

Download
memory/3868-62-0x00000000066E0000-0x00000000066EA000-memory.dmp

Filesize
40KB

Download
memory/3868-61-0x00000000068B0000-0x0000000006A72000-memory.dmp

Filesize
1.8MB

Download
memory/3868-60-0x0000000006640000-0x00000000066D2000-memory.dmp

Filesize
584KB

Download
memory/3868-48-0x0000000005790000-0x0000000005D34000-memory.dmp

Filesize
5.6MB

Download
memory/3868-47-0x0000000000620000-0x000000000063E000-memory.dmp

Filesize
120KB

Download
memory/3868-59-0x00000000060F0000-0x0000000006156000-memory.dmp

Filesize
408KB

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memory/4384-65-0x0000000000EC0000-0x0000000000EC6000-memory.dmp

Filesize
24KB

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memory/4828-11-0x00000000021D0000-0x00000000021DA000-memory.dmp

Filesize
40KB

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