formbook | 732336eccda1e0e01a9474a968eb6ac9725fec8e8e03ad950472df75ba470693

General

Target

new contract.exe
Size

587KB
MD5

c6b38036b68ea21306e8814ab1b1b4d9
SHA1

6b1ee982b77f2274ff6844f06706f13418dc6aa0
SHA256

732336eccda1e0e01a9474a968eb6ac9725fec8e8e03ad950472df75ba470693
SHA512

ffe83694f14e956fcd63e0f83845a1d631da501cfbf3552f0bc043d228b3fe59465a6c30bfd5c4bb98faaa89d00ecc4bf5881734a9d26d40759f7ce45eeee833
SSDEEP

12288:b5WqpMT1dGUsVYQP3OT0UuA/4jj2m5tpyoBfVN07dq9ovF6sDYSuk7xLZXo:bw0c1dGUsVYQ6uO/mbhVKqqYVk7xdo

Score

10^/10

formbook c89p discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c89p

Decoy

ftersaleb.top

dcustomdesgins.net

ostbet2024.live

rhgtrdjdjytkyhretrdjfytd.buzz

atauniversity.tech

idoctor365.net

x-design-courses-29670.bond

ellowold-pc.top

ransportationmmsytpro.top

areerfest.xyz

artiresbah-in.today

ijie.pro

torehousestudio.info

69-11-luxury-watches.shop

earing-tests-44243.bond

hits.shop

hzl9.bond

lood-test-jp-1.bond

livialiving.online

usymomsmakingmoney.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/2804-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2804-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2716-21-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2760	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 2804	2420	new contract.exe	31
PID 2804 set thread context of 1196	2804	new contract.exe	21
PID 2716 set thread context of 1196	2716	cmmon32.exe	21

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	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	new contract.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
2804	new contract.exe
2804	new contract.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe
2716	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2804	new contract.exe
2804	new contract.exe
2804	new contract.exe
2716	cmmon32.exe
2716	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2804	new contract.exe
Token: SeDebugPrivilege	2716	cmmon32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2804	2420	new contract.exe	31
PID 2420 wrote to memory of 2804	2420	new contract.exe	31
PID 2420 wrote to memory of 2804	2420	new contract.exe	31
PID 2420 wrote to memory of 2804	2420	new contract.exe	31
PID 2420 wrote to memory of 2804	2420	new contract.exe	31
PID 2420 wrote to memory of 2804	2420	new contract.exe	31
PID 2420 wrote to memory of 2804	2420	new contract.exe	31
PID 1196 wrote to memory of 2716	1196	Explorer.EXE	32
PID 1196 wrote to memory of 2716	1196	Explorer.EXE	32
PID 1196 wrote to memory of 2716	1196	Explorer.EXE	32
PID 1196 wrote to memory of 2716	1196	Explorer.EXE	32
PID 2716 wrote to memory of 2760	2716	cmmon32.exe	33
PID 2716 wrote to memory of 2760	2716	cmmon32.exe	33
PID 2716 wrote to memory of 2760	2716	cmmon32.exe	33
PID 2716 wrote to memory of 2760	2716	cmmon32.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\new contract.exe
  "C:\Users\Admin\AppData\Local\Temp\new contract.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2420
- - C:\Users\Admin\AppData\Local\Temp\new contract.exe
    "C:\Users\Admin\AppData\Local\Temp\new contract.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2804
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:2716
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\new contract.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2760

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

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Downloads

memory/1196-18-0x0000000004F10000-0x000000000505E000-memory.dmp

Filesize
1.3MB

Download
memory/1196-22-0x0000000004F10000-0x000000000505E000-memory.dmp

Filesize
1.3MB

Download
memory/2420-1-0x0000000001160000-0x00000000011F8000-memory.dmp

Filesize
608KB

Download
memory/2420-2-0x0000000073DD0000-0x00000000744BE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-3-0x0000000073DD0000-0x00000000744BE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-4-0x00000000004D0000-0x00000000004E2000-memory.dmp

Filesize
72KB

Download
memory/2420-5-0x0000000005CD0000-0x0000000005D46000-memory.dmp

Filesize
472KB

Download
memory/2420-0-0x0000000073DDE000-0x0000000073DDF000-memory.dmp

Filesize
4KB

Download
memory/2420-12-0x0000000073DD0000-0x00000000744BE000-memory.dmp

Filesize
6.9MB

Download
memory/2716-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2716-19-0x0000000000410000-0x000000000041D000-memory.dmp

Filesize
52KB

Download
memory/2716-20-0x0000000000410000-0x000000000041D000-memory.dmp

Filesize
52KB

Download
memory/2804-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2804-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2804-16-0x0000000000130000-0x0000000000144000-memory.dmp

Filesize
80KB

Download
memory/2804-13-0x0000000000A40000-0x0000000000D43000-memory.dmp

Filesize
3.0MB

Download
memory/2804-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2804-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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