formbook | f27e5747ed86d455994dd693a78eae10aa7e212eb7411b1665939b86e44b134f

General

Target

M20240930086.exe
Size

758KB
MD5

d6b81c33449a58e41301d210bc265632
SHA1

46b121a17c3f960430f488bcb4cc1c15307bdd55
SHA256

b481fd78d0f715aaf7d7446c33e2bdf500e52e1c0d58ce5f81efae25ff9a8fd2
SHA512

86bdadb1b65e6f7de574d7851518f52bdfd05c5e84a881115a9a7204693847b95094a6a4cc23a926fdb66433926c7ace6b54cc83e88272a66074712876882a4a
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLTA1S3c0DLFvFjmOd1soYKrdyTnapuTHTNOG002Iil:tthEVaPqLTAV89FNXuKrd6hTzoD02Iil

Score

10^/10

formbook c24t discovery rat spyware stealer trojan upx

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c24t

Decoy

ealthbridgeccs.online

ngelicais.art

uktuksu1.sbs

fapoker.asia

hecreature.tech

orenzoplaybest14.xyz

op-smartphones-deal.today

delark.click

7395.asia

otnews.cfd

j16e.xyz

oko.events

fscxb.top

roudtxliberals.vote

asas-br.bond

ourhealthyourlife.shop

fbpd.top

j9u9.xyz

uijiuw.top

aming-chair-37588.bond

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/3036-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/3036-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2720-16-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2132-6-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2132 set thread context of 3036	2132	M20240930086.exe	28
PID 3036 set thread context of 1080	3036	svchost.exe	18
PID 2720 set thread context of 1080	2720	NAPSTAT.EXE	18

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2132-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2132-6-0x0000000000400000-0x00000000004C2000-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	NAPSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3036	svchost.exe
3036	svchost.exe
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2132	M20240930086.exe
3036	svchost.exe
3036	svchost.exe
3036	svchost.exe
2720	NAPSTAT.EXE
2720	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	svchost.exe
Token: SeDebugPrivilege	2720	NAPSTAT.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2132	M20240930086.exe
2132	M20240930086.exe
1080	Explorer.EXE
1080	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2132	M20240930086.exe
2132	M20240930086.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 3036	2132	M20240930086.exe	28
PID 2132 wrote to memory of 3036	2132	M20240930086.exe	28
PID 2132 wrote to memory of 3036	2132	M20240930086.exe	28
PID 2132 wrote to memory of 3036	2132	M20240930086.exe	28
PID 2132 wrote to memory of 3036	2132	M20240930086.exe	28
PID 1080 wrote to memory of 2720	1080	Explorer.EXE	29
PID 1080 wrote to memory of 2720	1080	Explorer.EXE	29
PID 1080 wrote to memory of 2720	1080	Explorer.EXE	29
PID 1080 wrote to memory of 2720	1080	Explorer.EXE	29
PID 2720 wrote to memory of 2836	2720	NAPSTAT.EXE	30
PID 2720 wrote to memory of 2836	2720	NAPSTAT.EXE	30
PID 2720 wrote to memory of 2836	2720	NAPSTAT.EXE	30
PID 2720 wrote to memory of 2836	2720	NAPSTAT.EXE	30

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1080
- 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:2132
- - 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:3036
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.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:2720
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2836

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/1080-17-0x0000000004D70000-0x0000000004E34000-memory.dmp

Filesize
784KB

Download
memory/1080-26-0x0000000008540000-0x00000000086AB000-memory.dmp

Filesize
1.4MB

Download
memory/1080-9-0x0000000003AB0000-0x0000000003BB0000-memory.dmp

Filesize
1024KB

Download
memory/1080-12-0x0000000004D70000-0x0000000004E34000-memory.dmp

Filesize
784KB

Download
memory/1080-24-0x0000000008540000-0x00000000086AB000-memory.dmp

Filesize
1.4MB

Download
memory/1080-23-0x0000000008540000-0x00000000086AB000-memory.dmp

Filesize
1.4MB

Download
memory/2132-3-0x0000000003C40000-0x0000000003E40000-memory.dmp

Filesize
2.0MB

Download
memory/2132-6-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2132-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2720-13-0x00000000002F0000-0x0000000000336000-memory.dmp

Filesize
280KB

Download
memory/2720-15-0x00000000002F0000-0x0000000000336000-memory.dmp

Filesize
280KB

Download
memory/2720-16-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/3036-7-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/3036-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3036-11-0x0000000000350000-0x0000000000364000-memory.dmp

Filesize
80KB

Download
memory/3036-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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