formbook | a2fe38f4db69af965d119f88994d02f96a3e8bd46a18de8ee7bc67369ace48eb

Resubmissions

03-10-2024 00:15

241003-aj61lsyakc 10

03-10-2024 00:03

241003-ab54catfqk 10

Analysis

max time kernel
139s
max time network
142s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
03-10-2024 00:15

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General

Target

0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe
Size

797KB
MD5

0d033a274941308ccc748e7f2ed7c88c
SHA1

7a165113237c3ca1d3286b18b4cf9b52a8aef149
SHA256

a2fe38f4db69af965d119f88994d02f96a3e8bd46a18de8ee7bc67369ace48eb
SHA512

315121092a8f503deba8b9fb29022973275a102cefef1a323e0e0f0a858e75bd705140a7365b4b371e4155f0562b9b4a9d3904ee40b15dae5212b737326a1574
SSDEEP

12288:M7eySa2hjw/CLyOLn8dag7OsPauFCc2EQlhOU:jpwKLyOAdNv2HB

Score

10^/10

formbook g1 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

Decoy

careheartcoordination.net

beatu.info

tampaperiodontics.net

skimountainlodging.com

bareitmarketing.com

lol-mail.com

0fax.net

bigtraffic4upgrade.review

americanphysicianservices.com

mecasignal.com

healthcaremanagementsalary.com

frimail.net

wwwylh04.com

sexwithnosex.com

gofundmehomes.info

bggck.info

solutions4appstore.com

lesbbmajeurs.com

yunihealth.com

amritayoga-shonan.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2504-5-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3372 set thread context of 2504	3372	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe	79

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Panther\UnattendGC\setuperr.log	UserOOBEBroker.exe
File opened for modification	C:\Windows\Panther\UnattendGC\diagerr.xml	UserOOBEBroker.exe
File opened for modification	C:\Windows\Panther\UnattendGC\diagwrn.xml	UserOOBEBroker.exe
File opened for modification	C:\Windows\Panther\UnattendGC\setupact.log	UserOOBEBroker.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	FileCoAuth.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-242286936-336880687-2152680090-1000_Classes\Local Settings\MuiCache	MiniSearchHost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2504	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe
2504	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1800	OpenWith.exe

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3372	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe
1244	MiniSearchHost.exe
1800	OpenWith.exe
4772	OpenWith.exe
2536	OpenWith.exe
4564	OpenWith.exe
4564	OpenWith.exe
4564	OpenWith.exe
4948	OpenWith.exe
4948	OpenWith.exe
4948	OpenWith.exe
1228	OpenWith.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 2504	3372	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe	79
PID 3372 wrote to memory of 2504	3372	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe	79
PID 3372 wrote to memory of 2504	3372	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe	79
PID 3372 wrote to memory of 2504	3372	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe	79
PID 3372 wrote to memory of 2504	3372	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe	79
PID 3372 wrote to memory of 2504	3372	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe	79
PID 3372 wrote to memory of 2504	3372	0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe	79

C:\Users\Admin\AppData\Local\Temp\0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3372
- C:\Users\Admin\AppData\Local\Temp\0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\0d033a274941308ccc748e7f2ed7c88c_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2504

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:1244

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
1⤵
PID:1716

C:\Windows\System32\oobe\UserOOBEBroker.exe
C:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding
1⤵
- Drops file in Windows directory
PID:1156

C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe
C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding
1⤵
- System Location Discovery: System Language Discovery
PID:1224

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:1800

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:4772

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:2536

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:4564

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:4948

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:1228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

Filesize
10KB

MD5
3e1f5eeae74491d8850ef2c8b03a9a3b

SHA1
0c02c9c2550107de6dd0eb740ac5668f292883c0

SHA256
66756c0edf3925de7bcb685385e2a4f0b854cffd796a9e90eb1ed064b1fb0e30

SHA512
7637f0807d88dbceeb68823a044583e2248ac1ba73c000da6560f94075635a27d15970df7e52f8315bdc2f1c45cff6f1ab7690e916b58307a533f8df24329c2a

Download Submit
memory/2504-7-0x00007FFF1CB40000-0x00007FFF1CD49000-memory.dmp

Filesize
2.0MB

Download
memory/2504-5-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/3372-3-0x00007FFF1CB41000-0x00007FFF1CC6A000-memory.dmp

Filesize
1.2MB

Download
memory/3372-4-0x00007FFF1CB40000-0x00007FFF1CD49000-memory.dmp

Filesize
2.0MB

Download