formbook | ef911d4f6162d25b42b36bd71b99dd256565a68410c707ee29c40a01f3797036

Analysis

max time kernel
122s
max time network
129s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-09-2024 00:12

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General

Target

DHL PACKAGE - PDF.exe
Size

395KB
MD5

863bf0dfa1169706f566c070a1e11256
SHA1

77175726680e40eeefdad0578a1d3377486d9fff
SHA256

a102b644fd134778f28e1105e4645e84ff4d05687351990de90ae27a89f0513b
SHA512

21aef52bb4b5ed66c632c0ca55e156b95dd5bf2715599880fb0b5ffea523fca0b82739cf2617095336c332664ab8dcdd64fa910d3bae64c9f384767709720ada
SSDEEP

12288:nanOzOlC9Am80quPgdBHh/FOPfe+VYRVORkG:lqltm80qigrHxFGVYbi

Score

10^/10

formbook c232 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c232

Decoy

tangdourenfz.com

helpforkids.today

bioethanol-us.com

0351zc.com

3rdimultimedia.com

thecannibisconnection.net

mktoob.net

orchidinvestmentlimited.com

moccustoms.com

shopendora.com

rosariosandino.com

bien-vivre-tunisie.com

godofgreens.com

nhathuocphuongle.com

thefastsource.com

viagra2tadalafil.com

abarroteslacanasta.com

versabiosciences.com

nergiztarimhayvancilik.com

airpodsbayi.com

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/2528-33-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2528-36-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Loads dropped DLL 1 IoCs

pid	Process
736	rundll32.exe

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
2980	2528	WerFault.exe	31

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	DHL PACKAGE - PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
736	rundll32.exe
2528	cmd.exe
2528	cmd.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
736	rundll32.exe
2528	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	cmd.exe

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 2724 wrote to memory of 736	2724	DHL PACKAGE - PDF.exe	30
PID 2724 wrote to memory of 736	2724	DHL PACKAGE - PDF.exe	30
PID 2724 wrote to memory of 736	2724	DHL PACKAGE - PDF.exe	30
PID 2724 wrote to memory of 736	2724	DHL PACKAGE - PDF.exe	30
PID 2724 wrote to memory of 736	2724	DHL PACKAGE - PDF.exe	30
PID 2724 wrote to memory of 736	2724	DHL PACKAGE - PDF.exe	30
PID 2724 wrote to memory of 736	2724	DHL PACKAGE - PDF.exe	30
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 736 wrote to memory of 2528	736	rundll32.exe	31
PID 2528 wrote to memory of 2980	2528	cmd.exe	32
PID 2528 wrote to memory of 2980	2528	cmd.exe	32
PID 2528 wrote to memory of 2980	2528	cmd.exe	32
PID 2528 wrote to memory of 2980	2528	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\DHL PACKAGE - PDF.exe
"C:\Users\Admin\AppData\Local\Temp\DHL PACKAGE - PDF.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe SitulaCystocele,Hurley
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:736
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2528
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 208
      4⤵
      Program crash
      PID:2980

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\Prosody

Filesize
231KB

MD5
6847287ec5adf184583fac09b774e5dd

SHA1
52183c47dd439a5695eee05e2f22608e32179427

SHA256
27c010483a5665042dd6c20c69f9fdc4bbe9f7bf7fcc516f51cc8318a8c3b844

SHA512
1e7dbf36ac5949e120f804ebd986882e7d66ce1dc3bd8d0888073ea2f3f07fc13d8d11669372822d3630caf299a1675fd9cf62891203d67b8685520ff3d2775d

Download Submit
C:\Users\Admin\AppData\Local\Temp\SitulaCystocele.DLL

Filesize
50KB

MD5
de3f3ceccff80b3b0cc7e8cc58357b70

SHA1
701387d5e62903e114f4bdf59cd4f89cc6b2ad4e

SHA256
18e86106e60613594527c85fe6c97287fc8c3715181a62cb2b4d2258c210b6c8

SHA512
ad16ea6af2200f7f8a8c0fd0cc1fe5c935942a8789ce057818499b1a51865bb4a0b39a4091f84a2652d2c6ea7569e3829dd5b3043b2d44083a597f3954c2c6db

Download Submit
memory/736-21-0x0000000000100000-0x0000000000102000-memory.dmp

Filesize
8KB

Download
memory/736-22-0x0000000074A40000-0x0000000074A98000-memory.dmp

Filesize
352KB

Download
memory/736-23-0x0000000075E40000-0x0000000075E75000-memory.dmp

Filesize
212KB

Download
memory/736-24-0x0000000077640000-0x00000000777E9000-memory.dmp

Filesize
1.7MB

Download
memory/736-31-0x0000000074A40000-0x0000000074A98000-memory.dmp

Filesize
352KB

Download
memory/2528-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2528-26-0x0000000077640000-0x00000000777E9000-memory.dmp

Filesize
1.7MB

Download
memory/2528-33-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2528-34-0x0000000002010000-0x0000000002313000-memory.dmp

Filesize
3.0MB

Download
memory/2528-36-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download