formbook | 1091372b812b70532f2d29f18f41f1618a0d72ec9e03caa5bc02dda877ff04f9

General

Target

LF20240228.exe
Size

743KB
MD5

83e3cea3b92603057eac3c8991f64cbe
SHA1

eed62adc7c7d06a5ba530fcf763b9a167c5765b2
SHA256

1091372b812b70532f2d29f18f41f1618a0d72ec9e03caa5bc02dda877ff04f9
SHA512

8e0ebf0fcdf3f5f0b7d8d42a8c5a2f6a792ae5ba2a069fd14217a7329f2a7b91674eeb9bdf2b0d9fbdd12e047a5ef85bf6724f99b67375d7fcee73546be287f5
SSDEEP

12288:uKghZfmcEraWlPrMxQKwu3zIEG52mh7CsLDEbZjfgS0v2:Rg/f6raMMxQKwujIlh7dDE1Er

Score

10^/10

formbook hy29 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hy29

Decoy

obswell.online

etflix.luxury

ulunguwethu.store

ulbcenter.shop

nswering-service-mi-de-tt.click

upport-marketplace84.click

wepxbd163.lat

mplants-doctors.today

aofexf90yj.top

hermodynamic.space

dfg3n489.cyou

off.gay

alkak.cam

ijanarko.net

7tl.site

yaanincma.store

ires-47022.bond

elek4dalt77.xyz

foxsakepeople.online

ndefeatedqs.shop

Signatures

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

Formbook payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1108-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1108-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2616-26-0x0000000000080000-0x00000000000AF000-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

Processes:

powershell.exe

pid	Process
2696	powershell.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid	Process
1644	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

LF20240228.exeLF20240228.exeexplorer.exe

description	pid	Process	procid_target
PID 2544 set thread context of 1108	2544	LF20240228.exe	35
PID 1108 set thread context of 1164	1108	LF20240228.exe	21
PID 1108 set thread context of 1164	1108	LF20240228.exe	21
PID 2616 set thread context of 1164	2616	explorer.exe	21

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 5 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

Processes:

LF20240228.exepowershell.exeschtasks.exeexplorer.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LF20240228.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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

Processes:

schtasks.exe

pid	Process
2788	schtasks.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

LF20240228.exepowershell.exeexplorer.exe

pid	Process
1108	LF20240228.exe
1108	LF20240228.exe
2696	powershell.exe
1108	LF20240228.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe
2616	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

LF20240228.exeexplorer.exe

pid	Process
1108	LF20240228.exe
1108	LF20240228.exe
1108	LF20240228.exe
1108	LF20240228.exe
2616	explorer.exe
2616	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

LF20240228.exepowershell.exeexplorer.exe

description	pid	Process
Token: SeDebugPrivilege	1108	LF20240228.exe
Token: SeDebugPrivilege	2696	powershell.exe
Token: SeDebugPrivilege	2616	explorer.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

LF20240228.exeExplorer.EXEexplorer.exe

description	pid	Process	procid_target
PID 2544 wrote to memory of 2696	2544	LF20240228.exe	31
PID 2544 wrote to memory of 2696	2544	LF20240228.exe	31
PID 2544 wrote to memory of 2696	2544	LF20240228.exe	31
PID 2544 wrote to memory of 2696	2544	LF20240228.exe	31
PID 2544 wrote to memory of 2788	2544	LF20240228.exe	33
PID 2544 wrote to memory of 2788	2544	LF20240228.exe	33
PID 2544 wrote to memory of 2788	2544	LF20240228.exe	33
PID 2544 wrote to memory of 2788	2544	LF20240228.exe	33
PID 2544 wrote to memory of 1108	2544	LF20240228.exe	35
PID 2544 wrote to memory of 1108	2544	LF20240228.exe	35
PID 2544 wrote to memory of 1108	2544	LF20240228.exe	35
PID 2544 wrote to memory of 1108	2544	LF20240228.exe	35
PID 2544 wrote to memory of 1108	2544	LF20240228.exe	35
PID 2544 wrote to memory of 1108	2544	LF20240228.exe	35
PID 2544 wrote to memory of 1108	2544	LF20240228.exe	35
PID 1164 wrote to memory of 2616	1164	Explorer.EXE	36
PID 1164 wrote to memory of 2616	1164	Explorer.EXE	36
PID 1164 wrote to memory of 2616	1164	Explorer.EXE	36
PID 1164 wrote to memory of 2616	1164	Explorer.EXE	36
PID 2616 wrote to memory of 1644	2616	explorer.exe	37
PID 2616 wrote to memory of 1644	2616	explorer.exe	37
PID 2616 wrote to memory of 1644	2616	explorer.exe	37
PID 2616 wrote to memory of 1644	2616	explorer.exe	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Users\Admin\AppData\Local\Temp\LF20240228.exe
  "C:\Users\Admin\AppData\Local\Temp\LF20240228.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2544
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tqLSItFXSP.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2696
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tqLSItFXSP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp165E.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2788
- - C:\Users\Admin\AppData\Local\Temp\LF20240228.exe
    "C:\Users\Admin\AppData\Local\Temp\LF20240228.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1108
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:2616
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\LF20240228.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1644

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\tmp165E.tmp

Filesize
1KB

MD5
1b174b9f9494fbe74a6110178820ec75

SHA1
f003997485a759f14ad2e5c26ab8f0b6f788dbf8

SHA256
e46db3713fc081a896da6558627c5792dedc32c9807cd7da76251f26a95c8eed

SHA512
1463f719e50bafe4431a9514f59039cf260f6bda84253b7c991d19df11d9dc924dbac63dfe65e84a96db0f4ee82e1a94a0ab6d5a5c42524ebcf25facefb2373a

Download Submit
memory/1108-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1108-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1108-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1108-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1108-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1164-24-0x0000000006BD0000-0x0000000006CF6000-memory.dmp

Filesize
1.1MB

Download
memory/2544-4-0x000000007422E000-0x000000007422F000-memory.dmp

Filesize
4KB

Download
memory/2544-6-0x00000000004B0000-0x0000000000526000-memory.dmp

Filesize
472KB

Download
memory/2544-5-0x0000000074220000-0x000000007490E000-memory.dmp

Filesize
6.9MB

Download
memory/2544-0-0x000000007422E000-0x000000007422F000-memory.dmp

Filesize
4KB

Download
memory/2544-3-0x00000000005B0000-0x00000000005CC000-memory.dmp

Filesize
112KB

Download
memory/2544-22-0x0000000074220000-0x000000007490E000-memory.dmp

Filesize
6.9MB

Download
memory/2544-2-0x0000000074220000-0x000000007490E000-memory.dmp

Filesize
6.9MB

Download
memory/2544-1-0x0000000000830000-0x00000000008F0000-memory.dmp

Filesize
768KB

Download
memory/2616-25-0x00000000001E0000-0x0000000000461000-memory.dmp

Filesize
2.5MB

Download
memory/2616-26-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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