formbook | acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394

Analysis

max time kernel
146s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2025 03:02

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General

Target

acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe
Size

514KB
MD5

3a24b445bc1f406486761746815685be
SHA1

0f7871e14fdd53e3bac49dd32cca632280c3380f
SHA256

acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394
SHA512

ffab69c57977a2425559303868d3e724a4a01693bfb97234d4d81fc71e5f4c015eb7e1a776e0c9542e92065ab895a0bc79de8f5fc82d47d1f73b3e868bdeb827
SSDEEP

12288:V9BvctM85t35JPNJj2WzoRLQYRYzmYeY9+TlXueUfKIk7IkEo:VD0tM85tbNJjldeYiYvOXue4TOIkEo

Score

10^/10

formbook a03d discovery rat spyware stealer trojan upx

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a03d

Decoy

nfluencer-marketing-13524.bond

cebepu.info

lphatechblog.xyz

haoyun.website

itiz.xyz

orld-visa-center.online

si.art

alata.xyz

mmarketing.xyz

elnqdjc.shop

ensentoto.cloud

voyagu.info

onvert.today

1fuli9902.shop

otelhafnia.info

rumpchiefofstaff.store

urvivalflashlights.shop

0090.pizza

ings-hu-13.today

oliticalpatriot.net

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

resource	yara_rule
behavioral2/memory/4984-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4984-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3764-17-0x0000000000110000-0x000000000013F000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/4676-9-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4676 set thread context of 4984	4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe	85
PID 4984 set thread context of 3476	4984	svchost.exe	56
PID 3764 set thread context of 3476	3764	msdt.exe	56

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4676-0-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral2/memory/4676-9-0x0000000000400000-0x00000000004C1000-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	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.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 62 IoCs

pid	Process
4984	svchost.exe
4984	svchost.exe
4984	svchost.exe
4984	svchost.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe
3764	msdt.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe
4984	svchost.exe
4984	svchost.exe
4984	svchost.exe
3764	msdt.exe
3764	msdt.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4984	svchost.exe
Token: SeDebugPrivilege	3764	msdt.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe
4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe
4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4676 wrote to memory of 4984	4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe	85
PID 4676 wrote to memory of 4984	4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe	85
PID 4676 wrote to memory of 4984	4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe	85
PID 4676 wrote to memory of 4984	4676	acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe	85
PID 3476 wrote to memory of 3764	3476	Explorer.EXE	86
PID 3476 wrote to memory of 3764	3476	Explorer.EXE	86
PID 3476 wrote to memory of 3764	3476	Explorer.EXE	86
PID 3764 wrote to memory of 1896	3764	msdt.exe	88
PID 3764 wrote to memory of 1896	3764	msdt.exe	88
PID 3764 wrote to memory of 1896	3764	msdt.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3476
- C:\Users\Admin\AppData\Local\Temp\acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe
  "C:\Users\Admin\AppData\Local\Temp\acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.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:4676
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\acc906177a946e3e7fca9b9d962336e9e4d828297eb86761f610284f57fbf394.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4984
- 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:3764
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3476-25-0x0000000008BD0000-0x0000000008CE7000-memory.dmp

Filesize
1.1MB

Download
memory/3476-23-0x0000000008BD0000-0x0000000008CE7000-memory.dmp

Filesize
1.1MB

Download
memory/3476-22-0x0000000008BD0000-0x0000000008CE7000-memory.dmp

Filesize
1.1MB

Download
memory/3476-18-0x0000000007B00000-0x0000000007BB9000-memory.dmp

Filesize
740KB

Download
memory/3476-14-0x0000000007B00000-0x0000000007BB9000-memory.dmp

Filesize
740KB

Download
memory/3764-15-0x0000000000AD0000-0x0000000000B27000-memory.dmp

Filesize
348KB

Download
memory/3764-17-0x0000000000110000-0x000000000013F000-memory.dmp

Filesize
188KB

Download
memory/3764-16-0x0000000000AD0000-0x0000000000B27000-memory.dmp

Filesize
348KB

Download
memory/4676-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4676-0-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/4676-6-0x0000000003310000-0x0000000003314000-memory.dmp

Filesize
16KB

Download
memory/4984-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4984-13-0x0000000001C80000-0x0000000001C95000-memory.dmp

Filesize
84KB

Download
memory/4984-10-0x0000000001800000-0x0000000001B4A000-memory.dmp

Filesize
3.3MB

Download
memory/4984-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download