404keylogger | 3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c

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 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

Processes:

resource	yara_rule
C:\Users\Admin\Payment receipt.exe	family_404keylogger
behavioral2/memory/3756-47-0x0000000000250000-0x000000000026E000-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

Processes:

resource	yara_rule
behavioral2/memory/3176-57-0x0000000000400000-0x00000000004BE000-memory.dmp	formbook
behavioral2/memory/3176-60-0x0000000000400000-0x00000000004BE000-memory.dmp	formbook

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

Processes:

3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe

Executes dropped EXE 3 IoCs

Processes:

Coseismic.scrPayment receipt.exeCoseismic.scr

pid process

1940 Coseismic.scr
3756 Payment receipt.exe
3176 Coseismic.scr

pid	process
1940	Coseismic.scr
3756	Payment receipt.exe
3176	Coseismic.scr

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Coseismic.scr

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\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.

Processes:

flow ioc

10 checkip.dyndns.org

flow	ioc
10	checkip.dyndns.org

Suspicious use of SetThreadContext 3 IoCs

Processes:

Coseismic.scrchkdsk.exe

description	pid	process	target process
PID 3176 set thread context of 3448	3176	Coseismic.scr	Explorer.EXE
PID 3176 set thread context of 3448	3176	Coseismic.scr	Explorer.EXE
PID 4912 set thread context of 3448	4912	chkdsk.exe	Explorer.EXE

Drops file in Windows directory 4 IoCs

Processes:

3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exeCoseismic.scrCoseismic.scr

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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4836 3756 WerFault.exe Payment receipt.exe
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

pid	pid_target	process	target process
4836	3756	WerFault.exe	Payment receipt.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

Coseismic.scrchkdsk.exe

pid	process
3176	Coseismic.scr
3176	Coseismic.scr
3176	Coseismic.scr
3176	Coseismic.scr
3176	Coseismic.scr
3176	Coseismic.scr
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe
4912	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3448 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Coseismic.scrchkdsk.exe

pid process

3176 Coseismic.scr
3176 Coseismic.scr
3176 Coseismic.scr
3176 Coseismic.scr
4912 chkdsk.exe
4912 chkdsk.exe

pid	process
3448	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

Payment receipt.exeCoseismic.scrExplorer.EXEchkdsk.exe

description	pid	process
Token: SeDebugPrivilege	3756	Payment receipt.exe
Token: SeDebugPrivilege	3176	Coseismic.scr
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE
Token: SeDebugPrivilege	4912	chkdsk.exe
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exeCoseismic.scrCoseismic.scr

pid	process
3196	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
1656	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
1940	Coseismic.scr
3176	Coseismic.scr

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exeCoseismic.scrExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 3196 wrote to memory of 1656	3196	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
PID 3196 wrote to memory of 1656	3196	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
PID 3196 wrote to memory of 1656	3196	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe
PID 1656 wrote to memory of 1940	1656	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	Coseismic.scr
PID 1656 wrote to memory of 1940	1656	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	Coseismic.scr
PID 1656 wrote to memory of 1940	1656	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	Coseismic.scr
PID 1656 wrote to memory of 3756	1656	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	Payment receipt.exe
PID 1656 wrote to memory of 3756	1656	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	Payment receipt.exe
PID 1656 wrote to memory of 3756	1656	3979bd4374308cc1a5a91f04c080b480dc4081dd2612aa2a9d1b504f09b7367c.exe	Payment receipt.exe
PID 1940 wrote to memory of 3176	1940	Coseismic.scr	Coseismic.scr
PID 1940 wrote to memory of 3176	1940	Coseismic.scr	Coseismic.scr
PID 1940 wrote to memory of 3176	1940	Coseismic.scr	Coseismic.scr
PID 3448 wrote to memory of 4912	3448	Explorer.EXE	chkdsk.exe
PID 3448 wrote to memory of 4912	3448	Explorer.EXE	chkdsk.exe
PID 3448 wrote to memory of 4912	3448	Explorer.EXE	chkdsk.exe
PID 4912 wrote to memory of 452	4912	chkdsk.exe	cmd.exe
PID 4912 wrote to memory of 452	4912	chkdsk.exe	cmd.exe
PID 4912 wrote to memory of 452	4912	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3448
- 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:3196
- - 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:1656
  - - 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:1940
    - - 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:3176
  - - C:\Users\Admin\Payment receipt.exe
      "C:\Users\Admin\Payment receipt.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      PID:3756
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3756 -s 1504
        5⤵
        Program crash
        
        PID:4836
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4912
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\Pinatype\Coseismic.scr"
    3⤵
    PID:452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 3756 -ip 3756
1⤵
PID:2276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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/1656-11-0x00000000029B0000-0x00000000029BA000-memory.dmp

Filesize
40KB

Download
memory/3176-58-0x0000000002130000-0x000000000213A000-memory.dmp

Filesize
40KB

Download
memory/3176-57-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3176-60-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3196-4-0x0000000077991000-0x0000000077AB1000-memory.dmp

Filesize
1.1MB

Download
memory/3196-3-0x0000000002210000-0x000000000221A000-memory.dmp

Filesize
40KB

Download
memory/3448-63-0x0000000004A00000-0x0000000004ADE000-memory.dmp

Filesize
888KB

Download
memory/3756-47-0x0000000000250000-0x000000000026E000-memory.dmp

Filesize
120KB

Download
memory/3756-48-0x00000000051B0000-0x0000000005754000-memory.dmp

Filesize
5.6MB

Download
memory/3756-49-0x0000000004CA0000-0x0000000004D3C000-memory.dmp

Filesize
624KB

Download
memory/4912-61-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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