formbook | 72c5003f5b6107acf6531f3a31681b63825d883b4a51fb44518ac56c80ead0a4

General

Target

INV#349265.exe
Size

784KB
MD5

d89cd1e76600ab0ce3daa93016995b2a
SHA1

710caa0136a1d5251c23878ddb40f4c6b8c45f9d
SHA256

12af745dd8353b25857dc4bd3d3282f21c960ab55d3dece7e62d7a10a9aae810
SHA512

153cdc07ac45b683bb9e93d053aac3e4e8d3101b07a48c7d81585368c2b2aa3a54e3949a4cf05fe09a9a18d32e385b6ec4746071a571d2e464f862342e0c04b0
SSDEEP

12288:dTvgGThLLQsb16RwqKaKeN3Hd4hsubCcopOQBIyrtBNK/KoohkR:Vvg2LcvRwqKaKoX+hlGp/Blrtv+KP8

Score

10^/10

formbook t94g discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

t94g

Decoy

32188.top

mergencyroofrepair656460.online

jkahu.fun

ur4.autos

r0lba4cl0qkaws8.bond

eiliaowang.top

urjav.xyz

kidaman15.click

old-removal-p350.today

levatethismedia.info

h33323s40.top

dormy.click

5406.club

earlofwisdombook.pro

6980.app

ellwood999.biz

otdates.lol

164v.shop

thereal.app

takeget.online

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2696-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2696-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/532-21-0x0000000000080000-0x00000000000AF000-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

pid	Process
2692	powershell.exe

Deletes itself 1 IoCs

pid	Process
2408	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2844 set thread context of 2696	2844	INV#349265.exe	32
PID 2696 set thread context of 1200	2696	INV#349265.exe	21
PID 532 set thread context of 1200	532	msdt.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 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	INV#349265.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2844	INV#349265.exe
2844	INV#349265.exe
2696	INV#349265.exe
2696	INV#349265.exe
2692	powershell.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe
532	msdt.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2696	INV#349265.exe
2696	INV#349265.exe
2696	INV#349265.exe
532	msdt.exe
532	msdt.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	INV#349265.exe
Token: SeDebugPrivilege	2696	INV#349265.exe
Token: SeDebugPrivilege	2692	powershell.exe
Token: SeDebugPrivilege	532	msdt.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 2692	2844	INV#349265.exe	31
PID 2844 wrote to memory of 2692	2844	INV#349265.exe	31
PID 2844 wrote to memory of 2692	2844	INV#349265.exe	31
PID 2844 wrote to memory of 2692	2844	INV#349265.exe	31
PID 2844 wrote to memory of 2696	2844	INV#349265.exe	32
PID 2844 wrote to memory of 2696	2844	INV#349265.exe	32
PID 2844 wrote to memory of 2696	2844	INV#349265.exe	32
PID 2844 wrote to memory of 2696	2844	INV#349265.exe	32
PID 2844 wrote to memory of 2696	2844	INV#349265.exe	32
PID 2844 wrote to memory of 2696	2844	INV#349265.exe	32
PID 2844 wrote to memory of 2696	2844	INV#349265.exe	32
PID 1200 wrote to memory of 532	1200	Explorer.EXE	34
PID 1200 wrote to memory of 532	1200	Explorer.EXE	34
PID 1200 wrote to memory of 532	1200	Explorer.EXE	34
PID 1200 wrote to memory of 532	1200	Explorer.EXE	34
PID 532 wrote to memory of 2408	532	msdt.exe	35
PID 532 wrote to memory of 2408	532	msdt.exe	35
PID 532 wrote to memory of 2408	532	msdt.exe	35
PID 532 wrote to memory of 2408	532	msdt.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\INV#349265.exe
  "C:\Users\Admin\AppData\Local\Temp\INV#349265.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2844
- - 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\INV#349265.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2692
- - C:\Users\Admin\AppData\Local\Temp\INV#349265.exe
    "C:\Users\Admin\AppData\Local\Temp\INV#349265.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2696
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.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:532
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\INV#349265.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2408

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/532-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/532-20-0x00000000009D0000-0x0000000000AC4000-memory.dmp

Filesize
976KB

Download
memory/1200-16-0x00000000061A0000-0x000000000626B000-memory.dmp

Filesize
812KB

Download
memory/2696-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2696-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2696-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2696-15-0x0000000000180000-0x0000000000195000-memory.dmp

Filesize
84KB

Download
memory/2696-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2696-12-0x00000000008E0000-0x0000000000BE3000-memory.dmp

Filesize
3.0MB

Download
memory/2696-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2844-4-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2844-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/2844-3-0x0000000000300000-0x000000000031E000-memory.dmp

Filesize
120KB

Download
memory/2844-6-0x0000000000420000-0x0000000000496000-memory.dmp

Filesize
472KB

Download
memory/2844-5-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/2844-17-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/2844-2-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/2844-1-0x0000000000E30000-0x0000000000EF6000-memory.dmp

Filesize
792KB

Download

Analysis

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