formbook | 655c67e665ce83295be8a9aca6b81a71cf90d3e80902a3d1b7b929f658706521

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-09-2024 00:33

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General

Target

Scan 2020227 pdf.exe
Size

694KB
MD5

a68a0b2d4331d61bb64172c9e9786937
SHA1

a004b631c2f2aa425e3e6d9e262fb3815aef293b
SHA256

461b27147a73d91bf21f4b821d7ae63b35a4efc32a87c14e718caa0644bb1dff
SHA512

ad688d2d08e9ca1fab35a90d2fb049c2cddd680d10fef27dbc0da150de69bf3e068aaa9f7d4da4b7efd87623113b4cd3cdbeedd7f3a6ea1b81a82190f6b2da33
SSDEEP

12288:fRmJ34UqACPQoKwICzPhVifZWFuGZkTP2bjmgqLMDburpEau8n:f0B4U+Qo5Ph4ZWkQ5egqLC4Wf2

Score

10^/10

formbook cxs discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cxs

Decoy

modersport.info

egoody.net

qcmutiny.com

theblueberryview.com

rupornofilm.com

katomaviation.com

therograms.net

borealisbasecamp.com

ebooksites.net

clavicon.net

burshopvarcs.win

neilmedchinhhang.com

allamericandreamcafe.info

floridasingers.com

blockchainworker.com

throneonline.com

newentrepreneurkit.com

tit.group

0s0eightother.men

las6p.com

Signatures

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
behavioral2/memory/4488-4-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/4488-8-0x0000000000400000-0x000000000042D000-memory.dmp	formbook

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AHLPSHTXGV = "C:\\Program Files (x86)\\Ern-p\\2dpkxg4kht.exe"	svchost.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1432 set thread context of 4488	1432	Scan 2020227 pdf.exe	82
PID 4488 set thread context of 3508	4488	Scan 2020227 pdf.exe	56
PID 392 set thread context of 3508	392	svchost.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Ern-p\2dpkxg4kht.exe	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Scan 2020227 pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	svchost.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
1432	Scan 2020227 pdf.exe
1432	Scan 2020227 pdf.exe
4488	Scan 2020227 pdf.exe
4488	Scan 2020227 pdf.exe
4488	Scan 2020227 pdf.exe
4488	Scan 2020227 pdf.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1432	Scan 2020227 pdf.exe
4488	Scan 2020227 pdf.exe
4488	Scan 2020227 pdf.exe
4488	Scan 2020227 pdf.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe
392	svchost.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4488	Scan 2020227 pdf.exe
Token: SeDebugPrivilege	392	svchost.exe
Token: SeShutdownPrivilege	3508	Explorer.EXE
Token: SeCreatePagefilePrivilege	3508	Explorer.EXE
Token: SeShutdownPrivilege	3508	Explorer.EXE
Token: SeCreatePagefilePrivilege	3508	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 4488	1432	Scan 2020227 pdf.exe	82
PID 1432 wrote to memory of 4488	1432	Scan 2020227 pdf.exe	82
PID 1432 wrote to memory of 4488	1432	Scan 2020227 pdf.exe	82
PID 3508 wrote to memory of 392	3508	Explorer.EXE	83
PID 3508 wrote to memory of 392	3508	Explorer.EXE	83
PID 3508 wrote to memory of 392	3508	Explorer.EXE	83
PID 392 wrote to memory of 4212	392	svchost.exe	84
PID 392 wrote to memory of 4212	392	svchost.exe	84
PID 392 wrote to memory of 4212	392	svchost.exe	84
PID 392 wrote to memory of 5096	392	svchost.exe	95
PID 392 wrote to memory of 5096	392	svchost.exe	95
PID 392 wrote to memory of 5096	392	svchost.exe	95
PID 392 wrote to memory of 4600	392	svchost.exe	97
PID 392 wrote to memory of 4600	392	svchost.exe	97
PID 392 wrote to memory of 4600	392	svchost.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3508
- C:\Users\Admin\AppData\Local\Temp\Scan 2020227 pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Scan 2020227 pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1432
- - C:\Users\Admin\AppData\Local\Temp\Scan 2020227 pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan 2020227 pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4488
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:392
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Scan 2020227 pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4212
- - 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⤵
    - System Location Discovery: System Language Discovery
    PID:5096
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4600

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
C:\Users\Admin\AppData\Roaming\3PM2SQ0C\3PMlogim.jpeg

Filesize
74KB

MD5
92708851494b44cd84423a6223bbb776

SHA1
2dca481fc3233cce3632b252dc09c6687b81938c

SHA256
794ac8a600432fd8dfbe24273e12c4154997c26506dc400645b62bc131ca35a2

SHA512
64d5a56648b2e59e48fa3110cb3e895f8060cda6c00bc04fadb22394e11cd18d09719ab09b387cf364f0d2e76dad41ae96315f63d8506077f20a522232b07a14

Download Submit
C:\Users\Admin\AppData\Roaming\3PM2SQ0C\3PMlogrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\3PM2SQ0C\3PMlogrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\3PM2SQ0C\3PMlogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\3PM2SQ0C\3PMlogrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/392-12-0x0000000000F90000-0x0000000000F9E000-memory.dmp

Filesize
56KB

Download
memory/392-14-0x0000000000F90000-0x0000000000F9E000-memory.dmp

Filesize
56KB

Download
memory/1432-6-0x0000000000461000-0x000000000046A000-memory.dmp

Filesize
36KB

Download
memory/1432-0-0x0000000002350000-0x0000000002351000-memory.dmp

Filesize
4KB

Download
memory/1432-3-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1432-1-0x0000000000461000-0x000000000046A000-memory.dmp

Filesize
36KB

Download
memory/3508-15-0x0000000007EF0000-0x0000000007FE5000-memory.dmp

Filesize
980KB

Download
memory/3508-19-0x0000000008400000-0x0000000008505000-memory.dmp

Filesize
1.0MB

Download
memory/3508-20-0x0000000008400000-0x0000000008505000-memory.dmp

Filesize
1.0MB

Download
memory/3508-22-0x0000000008400000-0x0000000008505000-memory.dmp

Filesize
1.0MB

Download
memory/3508-9-0x0000000007EF0000-0x0000000007FE5000-memory.dmp

Filesize
980KB

Download
memory/4488-8-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4488-4-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download