formbook | c99c9f29ff7e94a3e83af1ca7872deace5c089b7913781c8d35f8e3134d34da0

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15-09-2024 10:29

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General

Target

pzUHRx6alP7phBn.exe
Size

571KB
MD5

312f45637432b1efec858ed32bdef462
SHA1

b23e75b94b84b31edaa0793b1228c444254effa2
SHA256

af4f28ed9e5d8205220c60f42668e6576233f54885c63fcaf43c2315328f45f1
SHA512

ca43f80d928b567803aa1597469a5fcc8cae580aa1e8a4c26d6ed248eb8e2414b56c11a23452679d60888d5f31344a0eaa7284168c38b3676475235561de7ad3
SSDEEP

6144:ohYWUks3Gmjob1xiDu8lJ/NY9m6xYcqhB01kDryaKngqBi+/baDlXuS+hwtTuKS6:6cSxiDUQcqTKtBF/kN2mflW+X0cV

Score

10^/10

formbook b31a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b31a

Decoy

enjamin-paaac.buzz

mail-marketing-40950.bond

pusems28-post.cyou

hindo.top

ruck-company-be.today

asinos-deutschland.net

ewancash.boats

etdopovo.casino

rcher-saaac.buzz

871166.vip

manuel.app

g3yqo.shop

-9way.xyz

qawgytfexe.bond

iefi6834.vip

ental-health-35901.bond

idat-merkez18.top

rojectleadzone.website

lirudolph.top

migloballlc.online

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1708-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1708-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1580-21-0x0000000000620000-0x000000000064F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4496 set thread context of 1708	4496	pzUHRx6alP7phBn.exe	94
PID 1708 set thread context of 3632	1708	pzUHRx6alP7phBn.exe	56
PID 1580 set thread context of 3632	1580	systray.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	pzUHRx6alP7phBn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
4496	pzUHRx6alP7phBn.exe
4496	pzUHRx6alP7phBn.exe
1708	pzUHRx6alP7phBn.exe
1708	pzUHRx6alP7phBn.exe
1708	pzUHRx6alP7phBn.exe
1708	pzUHRx6alP7phBn.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe
1580	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1708	pzUHRx6alP7phBn.exe
1708	pzUHRx6alP7phBn.exe
1708	pzUHRx6alP7phBn.exe
1580	systray.exe
1580	systray.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4496	pzUHRx6alP7phBn.exe
Token: SeDebugPrivilege	1708	pzUHRx6alP7phBn.exe
Token: SeDebugPrivilege	1580	systray.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3632	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4496 wrote to memory of 1708	4496	pzUHRx6alP7phBn.exe	94
PID 4496 wrote to memory of 1708	4496	pzUHRx6alP7phBn.exe	94
PID 4496 wrote to memory of 1708	4496	pzUHRx6alP7phBn.exe	94
PID 4496 wrote to memory of 1708	4496	pzUHRx6alP7phBn.exe	94
PID 4496 wrote to memory of 1708	4496	pzUHRx6alP7phBn.exe	94
PID 4496 wrote to memory of 1708	4496	pzUHRx6alP7phBn.exe	94
PID 3632 wrote to memory of 1580	3632	Explorer.EXE	95
PID 3632 wrote to memory of 1580	3632	Explorer.EXE	95
PID 3632 wrote to memory of 1580	3632	Explorer.EXE	95
PID 1580 wrote to memory of 3504	1580	systray.exe	96
PID 1580 wrote to memory of 3504	1580	systray.exe	96
PID 1580 wrote to memory of 3504	1580	systray.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3632
- C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe
  "C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4496
- - C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe
    "C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1708
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:1580
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\pzUHRx6alP7phBn.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3504

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

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Downloads

memory/1580-21-0x0000000000620000-0x000000000064F000-memory.dmp

Filesize
188KB

Download
memory/1580-20-0x0000000000030000-0x0000000000036000-memory.dmp

Filesize
24KB

Download
memory/1580-19-0x0000000000030000-0x0000000000036000-memory.dmp

Filesize
24KB

Download
memory/1708-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1708-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1708-17-0x0000000000CF0000-0x0000000000D04000-memory.dmp

Filesize
80KB

Download
memory/1708-14-0x0000000001030000-0x000000000137A000-memory.dmp

Filesize
3.3MB

Download
memory/3632-26-0x00000000086E0000-0x0000000008781000-memory.dmp

Filesize
644KB

Download
memory/3632-24-0x00000000086E0000-0x0000000008781000-memory.dmp

Filesize
644KB

Download
memory/3632-22-0x00000000085B0000-0x00000000086D8000-memory.dmp

Filesize
1.2MB

Download
memory/3632-18-0x00000000085B0000-0x00000000086D8000-memory.dmp

Filesize
1.2MB

Download
memory/4496-5-0x0000000005210000-0x000000000521A000-memory.dmp

Filesize
40KB

Download
memory/4496-13-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4496-10-0x000000000A170000-0x000000000A20C000-memory.dmp

Filesize
624KB

Download
memory/4496-9-0x0000000006640000-0x00000000066B6000-memory.dmp

Filesize
472KB

Download
memory/4496-8-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4496-7-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/4496-6-0x0000000005400000-0x000000000540E000-memory.dmp

Filesize
56KB

Download
memory/4496-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/4496-4-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4496-3-0x0000000005150000-0x00000000051E2000-memory.dmp

Filesize
584KB

Download
memory/4496-2-0x0000000005820000-0x0000000005DC4000-memory.dmp

Filesize
5.6MB

Download
memory/4496-1-0x00000000006F0000-0x0000000000784000-memory.dmp

Filesize
592KB

Download