formbook | 8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3a

General

Target

8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe
Size

1.1MB
MD5

73d2c751d8f62491c5b3498551271060
SHA1

5b871213220ee02ff53d7786684bf4ea9f179fd7
SHA256

8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3a
SHA512

c300679c01bbea549b6eaea644b69059dcc256f9190159b006aeb8e2136da5df506ba669ae3c025a340995816aee7f3d6fbe99a55c28e70aea93612c8b947976
SSDEEP

24576:btb20pkaCqT5TBWgNQ7aK4rc4CuoSnqbV6A:YVg5tQ7aK4r1oSqx5

Score

10^/10

formbook ud04 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ud04

Decoy

oum7.pro

ovonordisk.online

akrzus.pro

tendmtedcpsa.site

mm.foo

animevyhgsft29817.click

digdxxb.info

1130.vip

uy-now-pay-later-74776.bond

ybzert.online

edcn.link

rime-flow-bay.xyz

nd777id.beauty

otoyama.shop

lranchomx.xyz

unluoren.top

uglesang-troms.net

udulbet88.net

raquewear.shop

ijanarko.net

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2792-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2792-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2792-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2812-23-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2524 set thread context of 2792	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	30
PID 2792 set thread context of 1188	2792	svchost.exe	21
PID 2792 set thread context of 1188	2792	svchost.exe	21
PID 2812 set thread context of 1188	2812	cmstp.exe	21

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2800	2524	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
2792	svchost.exe
2792	svchost.exe
2792	svchost.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe
2812	cmstp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe
2792	svchost.exe
2792	svchost.exe
2792	svchost.exe
2792	svchost.exe
2812	cmstp.exe
2812	cmstp.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	svchost.exe
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeShutdownPrivilege	1188	Explorer.EXE
Token: SeDebugPrivilege	2812	cmstp.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe
2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe
1188	Explorer.EXE
1188	Explorer.EXE
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe
2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2792	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	30
PID 2524 wrote to memory of 2792	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	30
PID 2524 wrote to memory of 2792	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	30
PID 2524 wrote to memory of 2792	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	30
PID 2524 wrote to memory of 2792	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	30
PID 2524 wrote to memory of 2800	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	31
PID 2524 wrote to memory of 2800	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	31
PID 2524 wrote to memory of 2800	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	31
PID 2524 wrote to memory of 2800	2524	8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe	31
PID 1188 wrote to memory of 2812	1188	Explorer.EXE	32
PID 1188 wrote to memory of 2812	1188	Explorer.EXE	32
PID 1188 wrote to memory of 2812	1188	Explorer.EXE	32
PID 1188 wrote to memory of 2812	1188	Explorer.EXE	32
PID 1188 wrote to memory of 2812	1188	Explorer.EXE	32
PID 1188 wrote to memory of 2812	1188	Explorer.EXE	32
PID 1188 wrote to memory of 2812	1188	Explorer.EXE	32
PID 2812 wrote to memory of 3040	2812	cmstp.exe	33
PID 2812 wrote to memory of 3040	2812	cmstp.exe	33
PID 2812 wrote to memory of 3040	2812	cmstp.exe	33
PID 2812 wrote to memory of 3040	2812	cmstp.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe
  "C:\Users\Admin\AppData\Local\Temp\8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\8d676f36c888164632ce1eed49eb4ee62bc099f084315a88feec5794890b9a3aN.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2792
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 312
    3⤵
    - Program crash
    PID:2800
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2812
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1188-20-0x0000000004F50000-0x000000000502A000-memory.dmp

Filesize
872KB

Download
memory/1188-31-0x0000000005030000-0x000000000510F000-memory.dmp

Filesize
892KB

Download
memory/1188-30-0x0000000005030000-0x000000000510F000-memory.dmp

Filesize
892KB

Download
memory/1188-28-0x0000000005030000-0x000000000510F000-memory.dmp

Filesize
892KB

Download
memory/1188-10-0x0000000000360000-0x0000000000460000-memory.dmp

Filesize
1024KB

Download
memory/1188-13-0x0000000004F50000-0x000000000502A000-memory.dmp

Filesize
872KB

Download
memory/1188-24-0x00000000051E0000-0x0000000005314000-memory.dmp

Filesize
1.2MB

Download
memory/1188-19-0x00000000051E0000-0x0000000005314000-memory.dmp

Filesize
1.2MB

Download
memory/1188-18-0x000007FFFFFD9000-0x000007FFFFFDA000-memory.dmp

Filesize
4KB

Download
memory/2524-14-0x0000000000F50000-0x0000000001350000-memory.dmp

Filesize
4.0MB

Download
memory/2524-6-0x0000000000F50000-0x0000000001350000-memory.dmp

Filesize
4.0MB

Download
memory/2792-17-0x0000000000220000-0x0000000000234000-memory.dmp

Filesize
80KB

Download
memory/2792-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2792-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2792-12-0x00000000001E0000-0x00000000001F4000-memory.dmp

Filesize
80KB

Download
memory/2792-8-0x0000000000B40000-0x0000000000E43000-memory.dmp

Filesize
3.0MB

Download
memory/2792-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2812-22-0x0000000000D70000-0x0000000000D88000-memory.dmp

Filesize
96KB

Download
memory/2812-21-0x0000000000D70000-0x0000000000D88000-memory.dmp

Filesize
96KB

Download
memory/2812-23-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing