formbook | b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd

General

Target

b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe
Size

638KB
MD5

89b0f3adc6ab1db516dfb6b88b391889
SHA1

8dfb225e396966f5ef1cec4e86e24f063ef2cb8b
SHA256

b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd
SHA512

d6be55a82e568c5f20b33b205f5e38991d6094fc8b77e27fdfb9df5137b8c3408b8c09d880e2072dabdf537934122839cb85345cb4d53a464aaa67f7275080c9
SSDEEP

12288:oTzatXXkfTlVKJrfkgZyW2gZkg326y5usx+Xt:oTzatXXkfTlV6MgMgdyx

Score

10^/10

formbook bs84 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bs84

Decoy

ehuatang.quest

mart-healthcare.solutions

arehouse-inventory-59593.bond

rumpjokes.net

oonlightshadow.store

odernoob.website

sdmedia.net

0k21l6z.xyz

kwovenart.shop

chvb.bid

06ks28.buzz

grexvc.online

unnycdn02.shop

ettingitgonejunk.net

lubmango.store

ustjump.xyz

ofiveuss.store

aahasti-inter5.rest

etclcg.business

ai365.xyz

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/2688-24-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2836	powershell.exe
3016	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1800 set thread context of 2688	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	37

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 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	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2896	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3016	powershell.exe
2688	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe
2836	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3016	powershell.exe
Token: SeDebugPrivilege	2836	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1800 wrote to memory of 2836	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	31
PID 1800 wrote to memory of 2836	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	31
PID 1800 wrote to memory of 2836	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	31
PID 1800 wrote to memory of 2836	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	31
PID 1800 wrote to memory of 3016	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	33
PID 1800 wrote to memory of 3016	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	33
PID 1800 wrote to memory of 3016	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	33
PID 1800 wrote to memory of 3016	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	33
PID 1800 wrote to memory of 2896	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	34
PID 1800 wrote to memory of 2896	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	34
PID 1800 wrote to memory of 2896	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	34
PID 1800 wrote to memory of 2896	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	34
PID 1800 wrote to memory of 2688	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	37
PID 1800 wrote to memory of 2688	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	37
PID 1800 wrote to memory of 2688	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	37
PID 1800 wrote to memory of 2688	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	37
PID 1800 wrote to memory of 2688	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	37
PID 1800 wrote to memory of 2688	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	37
PID 1800 wrote to memory of 2688	1800	b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe	37

C:\Users\Admin\AppData\Local\Temp\b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe
"C:\Users\Admin\AppData\Local\Temp\b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1800
- 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\b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2836
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\STGxJbGQmSyNc.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3016
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\STGxJbGQmSyNc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC42.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2896
- C:\Users\Admin\AppData\Local\Temp\b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe
  "C:\Users\Admin\AppData\Local\Temp\b265f0b8bf110b2d0a0e5e7c244b0a2287b4f222c1c7f6890a8eef9af4da4ffd.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpEC42.tmp

Filesize
1KB

MD5
567dae9015eecfa0cefe921c8bd98331

SHA1
f2aa7aafe7ef503534027fad36258a17dde0a808

SHA256
501595c97285dc69155a12194ee245d3c685b046ede654e51a15f6b954cadce3

SHA512
a4918beea28ab784cf4c515925059d3b0b4794204d8d2834ce59b23714515f0f9ba1149f6e5d2f54b6e3b2b457247ef79e3b7b58ce625f8a240689f76a18bb84

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\DAOJQNJ9X26GDN623SJ2.temp

Filesize
7KB

MD5
46524c528d9b4a2d75b1c30fe982bb22

SHA1
be25ba5024473005cb6b78b64ac18418cc1177c9

SHA256
2edb4b34b51105240e32087c45a148249122b1ca07b3b0bc04b49a4b52cd2c7f

SHA512
5e31dc467958228f3332dbc53800909b3ac064ef94c5d7cb807e11979f86fd8807edced24e009c47979849918606b1f392221f23353985601266e799270ed8ad

Download Submit
memory/1800-6-0x0000000005220000-0x0000000005298000-memory.dmp

Filesize
480KB

Download
memory/1800-3-0x0000000000600000-0x0000000000618000-memory.dmp

Filesize
96KB

Download
memory/1800-4-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/1800-5-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/1800-0-0x00000000746FE000-0x00000000746FF000-memory.dmp

Filesize
4KB

Download
memory/1800-2-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/1800-1-0x00000000002B0000-0x0000000000356000-memory.dmp

Filesize
664KB

Download
memory/1800-25-0x00000000746F0000-0x0000000074DDE000-memory.dmp

Filesize
6.9MB

Download
memory/2688-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2688-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2688-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads