formbook | bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a

General

Target

bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe
Size

743KB
MD5

96e86e405d7562e778fa380a07ff8ff7
SHA1

c5f9c54d9bc639e7f84447e8d0b79323ef128b02
SHA256

bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a
SHA512

ae7ad2150f8c9b0037372af0092570d9557cbff7e6a5b260407211410c4457b105416a10a2c30b8ceeccf90ab6cf5e5970b1c53a5861af90e859c8924c1a8c51
SSDEEP

12288:uU8f2uE1zDMjwPCBchAASH2gDkPN0IJzI/4yoKAaKKiq08f2:uUu2uOUjw2chAAXgYmIJzI/4yoKAL60Z

Score

10^/10

formbook k49s discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k49s

Decoy

ufberyrubiest.shop

tpanekatotosite.top

esona805158762.xyz

earing-tests-15487.bond

rediksitiraitoto.xyz

tore-playstore.online

mpresarialpx38.online

ufxusa.net

reativedesigns.lat

leaning-services-47614.bond

959725nptklnq923.top

treziop.xyz

eubel-bestseller.online

uynewcars.xyz

all-panels-74750.bond

erviceninjas.vip

arectoroffice.xyz

oviesgpt.app

ractors-22059.bond

rakenfitness.info

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2868-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2788	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2664 set thread context of 2868	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	33

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

System Information Discovery
T1082

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	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2868	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe
2788	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2788	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 2788	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	31
PID 2664 wrote to memory of 2788	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	31
PID 2664 wrote to memory of 2788	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	31
PID 2664 wrote to memory of 2788	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	31
PID 2664 wrote to memory of 2868	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	33
PID 2664 wrote to memory of 2868	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	33
PID 2664 wrote to memory of 2868	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	33
PID 2664 wrote to memory of 2868	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	33
PID 2664 wrote to memory of 2868	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	33
PID 2664 wrote to memory of 2868	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	33
PID 2664 wrote to memory of 2868	2664	bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe	33

C:\Users\Admin\AppData\Local\Temp\bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe
"C:\Users\Admin\AppData\Local\Temp\bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2664
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2788
- C:\Users\Admin\AppData\Local\Temp\bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe
  "C:\Users\Admin\AppData\Local\Temp\bcc41988bc560c5ddf3e58165cc25daec67e3a33529b2179868f1b4b7746db7a.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2664-6-0x00000000005B0000-0x000000000062A000-memory.dmp

Filesize
488KB

Download
memory/2664-1-0x00000000008E0000-0x00000000009A0000-memory.dmp

Filesize
768KB

Download
memory/2664-2-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-3-0x0000000000490000-0x00000000004B6000-memory.dmp

Filesize
152KB

Download
memory/2664-4-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/2664-5-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-0-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/2664-15-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2868-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2868-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2868-14-0x00000000009A0000-0x0000000000CA3000-memory.dmp

Filesize
3.0MB

Download

Analysis

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