formbook | 2f4d7e1e8b7804f91b5cb9c12edf158749a5e1761f85af260fd034f3bc097519

Analysis

max time kernel
146s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06-12-2024 15:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

12052024000.PDF.exe
Size

616KB
MD5

cc6d7728ecb9c30b5e2d64bc46f1005d
SHA1

e9664338782ac9ffb910db3035c096da38707c70
SHA256

c2d348685fd22dd3ef1f9c245e4f6d184ab457cc0f38ec7bf23b414a9f937457
SHA512

05427c5c5ecaf383dc0a7af87877f1c69ebbdd53fc0656e8d3332c32717d937bb4ebb4ab905576e9990abbce7bf99288907a7e3c0de5219e593839e1bd8e8b6f
SSDEEP

12288:GPG/NIp8R0Z5rtzgKcM5E4PPsNNII6iutz:VWpo0tz9d55PsnII6i2

Score

10^/10

formbook gd04 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

gd04

Decoy

f5u8utd50.icu

ob-offer-33304.bond

aaf.zone

hoppersrack.store

nline-gaming-33476.bond

isionaryvault.online

ilitary-jobs-88516.bond

iyxym.info

eyes.xyz

refle.xyz

kinsmonlkey.shop

oruu.shop

est2x2.online

nline-advertising-77889.bond

hepresspoolai.xyz

anilaberg.online

reimutigleben.store

anguage-courses-22450.bond

zzt.xyz

kfn.lat

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
behavioral1/memory/2732-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2732-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2864-24-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2760	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1488 set thread context of 2732	1488	12052024000.PDF.exe	34
PID 2732 set thread context of 1204	2732	12052024000.PDF.exe	21
PID 2864 set thread context of 1204	2864	NAPSTAT.EXE	21

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	12052024000.PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NAPSTAT.EXE

Suspicious behavior: EnumeratesProcesses 34 IoCs

pid	Process
1488	12052024000.PDF.exe
1488	12052024000.PDF.exe
1488	12052024000.PDF.exe
1488	12052024000.PDF.exe
1488	12052024000.PDF.exe
1488	12052024000.PDF.exe
2732	12052024000.PDF.exe
2732	12052024000.PDF.exe
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2732	12052024000.PDF.exe
2732	12052024000.PDF.exe
2732	12052024000.PDF.exe
2864	NAPSTAT.EXE
2864	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1488	12052024000.PDF.exe
Token: SeDebugPrivilege	2732	12052024000.PDF.exe
Token: SeDebugPrivilege	2864	NAPSTAT.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 2336	1488	12052024000.PDF.exe	31
PID 1488 wrote to memory of 2336	1488	12052024000.PDF.exe	31
PID 1488 wrote to memory of 2336	1488	12052024000.PDF.exe	31
PID 1488 wrote to memory of 2336	1488	12052024000.PDF.exe	31
PID 1488 wrote to memory of 2932	1488	12052024000.PDF.exe	32
PID 1488 wrote to memory of 2932	1488	12052024000.PDF.exe	32
PID 1488 wrote to memory of 2932	1488	12052024000.PDF.exe	32
PID 1488 wrote to memory of 2932	1488	12052024000.PDF.exe	32
PID 1488 wrote to memory of 2588	1488	12052024000.PDF.exe	33
PID 1488 wrote to memory of 2588	1488	12052024000.PDF.exe	33
PID 1488 wrote to memory of 2588	1488	12052024000.PDF.exe	33
PID 1488 wrote to memory of 2588	1488	12052024000.PDF.exe	33
PID 1488 wrote to memory of 2732	1488	12052024000.PDF.exe	34
PID 1488 wrote to memory of 2732	1488	12052024000.PDF.exe	34
PID 1488 wrote to memory of 2732	1488	12052024000.PDF.exe	34
PID 1488 wrote to memory of 2732	1488	12052024000.PDF.exe	34
PID 1488 wrote to memory of 2732	1488	12052024000.PDF.exe	34
PID 1488 wrote to memory of 2732	1488	12052024000.PDF.exe	34
PID 1488 wrote to memory of 2732	1488	12052024000.PDF.exe	34
PID 1204 wrote to memory of 2864	1204	Explorer.EXE	35
PID 1204 wrote to memory of 2864	1204	Explorer.EXE	35
PID 1204 wrote to memory of 2864	1204	Explorer.EXE	35
PID 1204 wrote to memory of 2864	1204	Explorer.EXE	35
PID 2864 wrote to memory of 2760	2864	NAPSTAT.EXE	36
PID 2864 wrote to memory of 2760	2864	NAPSTAT.EXE	36
PID 2864 wrote to memory of 2760	2864	NAPSTAT.EXE	36
PID 2864 wrote to memory of 2760	2864	NAPSTAT.EXE	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1488
- - C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe"
    3⤵
    PID:2336
- - C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe"
    3⤵
    PID:2932
- - C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe"
    3⤵
    PID:2588
- - C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2732
- 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:2864
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\12052024000.PDF.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1204-21-0x0000000004FF0000-0x000000000515A000-memory.dmp

Filesize
1.4MB

Download
memory/1204-25-0x0000000004FF0000-0x000000000515A000-memory.dmp

Filesize
1.4MB

Download
memory/1488-5-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/1488-2-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/1488-4-0x00000000748FE000-0x00000000748FF000-memory.dmp

Filesize
4KB

Download
memory/1488-0-0x00000000748FE000-0x00000000748FF000-memory.dmp

Filesize
4KB

Download
memory/1488-6-0x00000000053A0000-0x000000000541A000-memory.dmp

Filesize
488KB

Download
memory/1488-1-0x0000000000220000-0x00000000002C0000-memory.dmp

Filesize
640KB

Download
memory/1488-3-0x00000000004C0000-0x00000000004D8000-memory.dmp

Filesize
96KB

Download
memory/1488-15-0x00000000748F0000-0x0000000074FDE000-memory.dmp

Filesize
6.9MB

Download
memory/2732-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2732-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2732-19-0x0000000000320000-0x0000000000334000-memory.dmp

Filesize
80KB

Download
memory/2732-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2732-16-0x00000000009A0000-0x0000000000CA3000-memory.dmp

Filesize
3.0MB

Download
memory/2732-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2732-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2864-23-0x0000000000BC0000-0x0000000000C06000-memory.dmp

Filesize
280KB

Download
memory/2864-22-0x0000000000BC0000-0x0000000000C06000-memory.dmp

Filesize
280KB

Download
memory/2864-24-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download