formbook | f3243a385c52c660c7c590a7ef77324199c3ccdd8fb70ed3292028afc2583c82

General

Target

M20240930086..exe
Size

744KB
MD5

1f3a6997ed55ef6be6beccfc1996e011
SHA1

e79c2dde745697bace3bc0efceb136b4796b61a0
SHA256

36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97
SHA512

75a895a1e52929af7c3799ac4a609989246659c2e3cf9dc076bc873d089dbd47219eeb8ba4fdcb82c8fe5d1215dbd0f59eab69b43afe782e8268b140a5cdcb18
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLRMiO8RxrhwK9kNr2rReqSHmZBGtA/q80okL3Rf:tthEVaPqLRlO8VCx2NeqlTOt

Score

10^/10

formbook c89p discovery rat spyware stealer trojan upx

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/3044-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3044-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1772-14-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2004-6-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2004 set thread context of 3044	2004	M20240930086..exe	31
PID 3044 set thread context of 1200	3044	svchost.exe	21
PID 1772 set thread context of 1200	1772	explorer.exe	21

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2004-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2004-6-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

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 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	M20240930086..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3044	svchost.exe
3044	svchost.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe
1772	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2004	M20240930086..exe
3044	svchost.exe
3044	svchost.exe
3044	svchost.exe
1772	explorer.exe
1772	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3044	svchost.exe
Token: SeDebugPrivilege	1772	explorer.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
2004	M20240930086..exe
2004	M20240930086..exe
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2004	M20240930086..exe
2004	M20240930086..exe
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 3044	2004	M20240930086..exe	31
PID 2004 wrote to memory of 3044	2004	M20240930086..exe	31
PID 2004 wrote to memory of 3044	2004	M20240930086..exe	31
PID 2004 wrote to memory of 3044	2004	M20240930086..exe	31
PID 2004 wrote to memory of 3044	2004	M20240930086..exe	31
PID 1200 wrote to memory of 1772	1200	Explorer.EXE	32
PID 1200 wrote to memory of 1772	1200	Explorer.EXE	32
PID 1200 wrote to memory of 1772	1200	Explorer.EXE	32
PID 1200 wrote to memory of 1772	1200	Explorer.EXE	32
PID 1772 wrote to memory of 356	1772	explorer.exe	33
PID 1772 wrote to memory of 356	1772	explorer.exe	33
PID 1772 wrote to memory of 356	1772	explorer.exe	33
PID 1772 wrote to memory of 356	1772	explorer.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\M20240930086..exe
  "C:\Users\Admin\AppData\Local\Temp\M20240930086..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:2004
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\M20240930086..exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3044
- 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:1772
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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/1200-24-0x0000000004DB0000-0x0000000004E51000-memory.dmp

Filesize
644KB

Download
memory/1200-22-0x0000000004DB0000-0x0000000004E51000-memory.dmp

Filesize
644KB

Download
memory/1200-21-0x0000000004DB0000-0x0000000004E51000-memory.dmp

Filesize
644KB

Download
memory/1200-15-0x00000000050F0000-0x0000000005211000-memory.dmp

Filesize
1.1MB

Download
memory/1200-11-0x00000000050F0000-0x0000000005211000-memory.dmp

Filesize
1.1MB

Download
memory/1772-12-0x0000000000AF0000-0x0000000000D71000-memory.dmp

Filesize
2.5MB

Download
memory/1772-14-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1772-13-0x0000000000AF0000-0x0000000000D71000-memory.dmp

Filesize
2.5MB

Download
memory/2004-6-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2004-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2004-3-0x0000000003E90000-0x0000000004290000-memory.dmp

Filesize
4.0MB

Download
memory/3044-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3044-10-0x0000000000180000-0x0000000000194000-memory.dmp

Filesize
80KB

Download
memory/3044-7-0x0000000000BC0000-0x0000000000EC3000-memory.dmp

Filesize
3.0MB

Download
memory/3044-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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