formbook | a0ec8ea072fa0a81fb5e660f8aa278d9c06bb361080845911208d6579d15605a

General

Target

PO401.exe
Size

1.1MB
MD5

39791818339b4e65f0d41b14f140a4e0
SHA1

d8f6f8b7c289d34b9a81180ae764ab0257b8d4fc
SHA256

a0ec8ea072fa0a81fb5e660f8aa278d9c06bb361080845911208d6579d15605a
SHA512

de61350aa0b78dd2884e98bd1bbf4271ded43cf0e45cf0c2fddd3fc038a35a1abcf8f0380d613e55281d416437fdc2f4864cbed024649093dc72d0e65b037dde
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCWRD74Y20CSdCGxkqi263Va:7JZoQrbTFZY1iaCWF7RUqi2YVa

Score

10^/10

formbook c24t discovery rat spyware stealer trojan

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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2168-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2168-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1812 set thread context of 2168	1812	PO401.exe	30
PID 2168 set thread context of 1200	2168	svchost.exe	21

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2784	2788	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	PO401.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2168	svchost.exe
2168	svchost.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
1812	PO401.exe
2168	svchost.exe
2168	svchost.exe
2168	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2168	svchost.exe
Token: SeShutdownPrivilege	1200	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 2168	1812	PO401.exe	30
PID 1812 wrote to memory of 2168	1812	PO401.exe	30
PID 1812 wrote to memory of 2168	1812	PO401.exe	30
PID 1812 wrote to memory of 2168	1812	PO401.exe	30
PID 1812 wrote to memory of 2168	1812	PO401.exe	30
PID 1200 wrote to memory of 2788	1200	Explorer.EXE	31
PID 1200 wrote to memory of 2788	1200	Explorer.EXE	31
PID 1200 wrote to memory of 2788	1200	Explorer.EXE	31
PID 1200 wrote to memory of 2788	1200	Explorer.EXE	31
PID 1200 wrote to memory of 2788	1200	Explorer.EXE	31
PID 1200 wrote to memory of 2788	1200	Explorer.EXE	31
PID 1200 wrote to memory of 2788	1200	Explorer.EXE	31
PID 2788 wrote to memory of 2784	2788	msiexec.exe	32
PID 2788 wrote to memory of 2784	2788	msiexec.exe	32
PID 2788 wrote to memory of 2784	2788	msiexec.exe	32
PID 2788 wrote to memory of 2784	2788	msiexec.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\PO401.exe
  "C:\Users\Admin\AppData\Local\Temp\PO401.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\PO401.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2168
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2788 -s 268
    3⤵
    - Program crash
    PID:2784

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

Loading Replay Monitor...

Downloads

memory/1200-8-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1200-9-0x0000000004DB0000-0x0000000004EF9000-memory.dmp

Filesize
1.3MB

Download
memory/1200-15-0x0000000004DB0000-0x0000000004EF9000-memory.dmp

Filesize
1.3MB

Download
memory/1812-2-0x0000000003280000-0x0000000003680000-memory.dmp

Filesize
4.0MB

Download
memory/2168-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2168-4-0x0000000000A50000-0x0000000000D53000-memory.dmp

Filesize
3.0MB

Download
memory/2168-7-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/2168-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2788-10-0x00000000005D0000-0x00000000005E4000-memory.dmp

Filesize
80KB

Download
memory/2788-11-0x00000000005D0000-0x00000000005E4000-memory.dmp

Filesize
80KB

Download
memory/2788-13-0x00000000005D0000-0x00000000005E4000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing