formbook | 8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11/01/2025, 04:15

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General

Target

8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe
Size

1.2MB
MD5

3fc2b24484dda073e49d5185f1b4d623
SHA1

205ba4e3999d60014125a2d1ebb801d8eb3fea16
SHA256

8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0
SHA512

b52fbe98d9a3b6ad20923155f073f60f1e15ddbcfd89b2bdaf588cc8242929545bb07dea772c9c49fe624951d84266a8333b126ecbe763ba665c0722a243c049
SSDEEP

24576:Ftb20pkaCqT5TBWgNQ7adfDaeVq4v8T7r96A:2Vg5tQ7adfDaL4v8nJ5

Score

10^/10

formbook ud04 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ud04

Decoy

oum7.pro

ovonordisk.online

akrzus.pro

tendmtedcpsa.site

mm.foo

animevyhgsft29817.click

digdxxb.info

1130.vip

uy-now-pay-later-74776.bond

ybzert.online

edcn.link

rime-flow-bay.xyz

nd777id.beauty

otoyama.shop

lranchomx.xyz

unluoren.top

uglesang-troms.net

udulbet88.net

raquewear.shop

ijanarko.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/4152-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4152-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4432-15-0x0000000000530000-0x000000000055F000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/924-6-0x00000000016A0000-0x0000000001AA0000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 924 set thread context of 4152	924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe	82
PID 4152 set thread context of 3532	4152	svchost.exe	56
PID 4432 set thread context of 3532	4432	NETSTAT.EXE	56

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	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4432	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4152	svchost.exe
4152	svchost.exe
4152	svchost.exe
4152	svchost.exe
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE
4432	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe
4152	svchost.exe
4152	svchost.exe
4152	svchost.exe
4432	NETSTAT.EXE
4432	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4152	svchost.exe
Token: SeDebugPrivilege	4432	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe
924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe
924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 924 wrote to memory of 4152	924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe	82
PID 924 wrote to memory of 4152	924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe	82
PID 924 wrote to memory of 4152	924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe	82
PID 924 wrote to memory of 4152	924	8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe	82
PID 3532 wrote to memory of 4432	3532	Explorer.EXE	84
PID 3532 wrote to memory of 4432	3532	Explorer.EXE	84
PID 3532 wrote to memory of 4432	3532	Explorer.EXE	84
PID 4432 wrote to memory of 3460	4432	NETSTAT.EXE	85
PID 4432 wrote to memory of 3460	4432	NETSTAT.EXE	85
PID 4432 wrote to memory of 3460	4432	NETSTAT.EXE	85

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Users\Admin\AppData\Local\Temp\8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe
  "C:\Users\Admin\AppData\Local\Temp\8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.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:924
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\8c1abbfb1664d990fc963b506dee588c18ed4c286c4ed0d4d5e75b74175e1af0.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4152
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4020
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4432
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

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Downloads

memory/924-6-0x00000000016A0000-0x0000000001AA0000-memory.dmp

Filesize
4.0MB

Download
memory/3532-16-0x0000000009020000-0x0000000009176000-memory.dmp

Filesize
1.3MB

Download
memory/3532-23-0x0000000002870000-0x0000000002943000-memory.dmp

Filesize
844KB

Download
memory/3532-21-0x0000000002870000-0x0000000002943000-memory.dmp

Filesize
844KB

Download
memory/3532-20-0x0000000002870000-0x0000000002943000-memory.dmp

Filesize
844KB

Download
memory/3532-12-0x0000000009020000-0x0000000009176000-memory.dmp

Filesize
1.3MB

Download
memory/4152-11-0x00000000005D0000-0x00000000005E4000-memory.dmp

Filesize
80KB

Download
memory/4152-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4152-8-0x0000000000E00000-0x000000000114A000-memory.dmp

Filesize
3.3MB

Download
memory/4152-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4432-14-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download
memory/4432-15-0x0000000000530000-0x000000000055F000-memory.dmp

Filesize
188KB

Download
memory/4432-13-0x00000000000C0000-0x00000000000CB000-memory.dmp

Filesize
44KB

Download