formbook | 435424456ff6964a551a626db39ad606b58644f6ae9189e1e590aec8d645c397

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06-09-2024 07:19

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General

Target

DHL documents required_PDF.exe
Size

681KB
MD5

9543b5b2255515598a9029b12bf4ba3d
SHA1

4606c0dc68d132d32ceb0052e970e813eb881d51
SHA256

435424456ff6964a551a626db39ad606b58644f6ae9189e1e590aec8d645c397
SHA512

ad3c7a43372714bdcb2b73ba03edf315d5cb82d463c1c4f2e993a973ba036a3bd12b19b853896962cc84e90861d8a6d153e7f28c7f1fee18a09092b189f007aa
SSDEEP

12288:9P9r1UoIG5MPUekc2vJPGWmEDKGS3BI951CqYxbVpQp1Lh1He3:9vUobyJC+9YKGr9rCqUV4BPHe3

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/404-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/404-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1808-22-0x0000000000FD0000-0x0000000000FFF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 220 set thread context of 404	220	DHL documents required_PDF.exe	94
PID 404 set thread context of 3404	404	DHL documents required_PDF.exe	56
PID 1808 set thread context of 3404	1808	cscript.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	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DHL documents required_PDF.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
220	DHL documents required_PDF.exe
220	DHL documents required_PDF.exe
220	DHL documents required_PDF.exe
220	DHL documents required_PDF.exe
404	DHL documents required_PDF.exe
404	DHL documents required_PDF.exe
404	DHL documents required_PDF.exe
404	DHL documents required_PDF.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe
1808	cscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
404	DHL documents required_PDF.exe
404	DHL documents required_PDF.exe
404	DHL documents required_PDF.exe
1808	cscript.exe
1808	cscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	220	DHL documents required_PDF.exe
Token: SeDebugPrivilege	404	DHL documents required_PDF.exe
Token: SeDebugPrivilege	1808	cscript.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3404	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 636	220	DHL documents required_PDF.exe	93
PID 220 wrote to memory of 636	220	DHL documents required_PDF.exe	93
PID 220 wrote to memory of 636	220	DHL documents required_PDF.exe	93
PID 220 wrote to memory of 404	220	DHL documents required_PDF.exe	94
PID 220 wrote to memory of 404	220	DHL documents required_PDF.exe	94
PID 220 wrote to memory of 404	220	DHL documents required_PDF.exe	94
PID 220 wrote to memory of 404	220	DHL documents required_PDF.exe	94
PID 220 wrote to memory of 404	220	DHL documents required_PDF.exe	94
PID 220 wrote to memory of 404	220	DHL documents required_PDF.exe	94
PID 3404 wrote to memory of 1808	3404	Explorer.EXE	95
PID 3404 wrote to memory of 1808	3404	Explorer.EXE	95
PID 3404 wrote to memory of 1808	3404	Explorer.EXE	95
PID 1808 wrote to memory of 2172	1808	cscript.exe	96
PID 1808 wrote to memory of 2172	1808	cscript.exe	96
PID 1808 wrote to memory of 2172	1808	cscript.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3404
- C:\Users\Admin\AppData\Local\Temp\DHL documents required_PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL documents required_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:220
- - C:\Users\Admin\AppData\Local\Temp\DHL documents required_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL documents required_PDF.exe"
    3⤵
    PID:636
- - C:\Users\Admin\AppData\Local\Temp\DHL documents required_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL documents required_PDF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:404
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.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:1808
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\DHL documents required_PDF.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2172

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/220-13-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/220-0-0x00000000750DE000-0x00000000750DF000-memory.dmp

Filesize
4KB

Download
memory/220-2-0x0000000006140000-0x00000000066E4000-memory.dmp

Filesize
5.6MB

Download
memory/220-3-0x0000000005B90000-0x0000000005C22000-memory.dmp

Filesize
584KB

Download
memory/220-4-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/220-5-0x0000000005B50000-0x0000000005B5A000-memory.dmp

Filesize
40KB

Download
memory/220-6-0x0000000005D50000-0x0000000005DEC000-memory.dmp

Filesize
624KB

Download
memory/220-7-0x0000000005D00000-0x0000000005D18000-memory.dmp

Filesize
96KB

Download
memory/220-8-0x00000000750DE000-0x00000000750DF000-memory.dmp

Filesize
4KB

Download
memory/220-9-0x00000000750D0000-0x0000000075880000-memory.dmp

Filesize
7.7MB

Download
memory/220-10-0x0000000006F70000-0x0000000006FE6000-memory.dmp

Filesize
472KB

Download
memory/220-1-0x0000000000FC0000-0x0000000001070000-memory.dmp

Filesize
704KB

Download
memory/404-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/404-14-0x0000000001770000-0x0000000001ABA000-memory.dmp

Filesize
3.3MB

Download
memory/404-17-0x0000000001210000-0x0000000001224000-memory.dmp

Filesize
80KB

Download
memory/404-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1808-20-0x00000000009E0000-0x0000000000A07000-memory.dmp

Filesize
156KB

Download
memory/1808-19-0x00000000009E0000-0x0000000000A07000-memory.dmp

Filesize
156KB

Download
memory/1808-22-0x0000000000FD0000-0x0000000000FFF000-memory.dmp

Filesize
188KB

Download
memory/3404-18-0x0000000008E10000-0x0000000008F2A000-memory.dmp

Filesize
1.1MB

Download
memory/3404-26-0x00000000032C0000-0x000000000338B000-memory.dmp

Filesize
812KB

Download
memory/3404-21-0x0000000008E10000-0x0000000008F2A000-memory.dmp

Filesize
1.1MB

Download
memory/3404-27-0x00000000032C0000-0x000000000338B000-memory.dmp

Filesize
812KB

Download
memory/3404-29-0x00000000032C0000-0x000000000338B000-memory.dmp

Filesize
812KB

Download