formbook | a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23/09/2024, 14:09

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General

Target

DHL documents_PDF.exe
Size

607KB
MD5

2cfcfa872943b645d06cfa942435d654
SHA1

0055d197345b987a44eb5606b9de1f37266e02cc
SHA256

a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655
SHA512

50008d8a526146310aeb73ddb8f0d3e5b000dd3fc288109b640f9280e375ce1588640168bbea27a202060a8eaf1abb7e2c0c8d650a856c99ec0dcde8647364e3
SSDEEP

12288:dd9NnRTwX/gNDTIO7LFV9B75Nrwu1oQZwq37crrjjnJZw:H5BvIi79B7t+q37SHJe

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 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4960-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4960-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4960-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4520-27-0x0000000000860000-0x000000000088F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4892 set thread context of 4960	4892	DHL documents_PDF.exe	88
PID 4960 set thread context of 3436	4960	DHL documents_PDF.exe	56
PID 4960 set thread context of 3436	4960	DHL documents_PDF.exe	56
PID 4520 set thread context of 3436	4520	rundll32.exe	56

System Location Discovery: System Language Discovery 1 TTPs 4 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 documents_PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DHL documents_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 60 IoCs

pid	Process
4892	DHL documents_PDF.exe
4892	DHL documents_PDF.exe
4892	DHL documents_PDF.exe
4892	DHL documents_PDF.exe
4960	DHL documents_PDF.exe
4960	DHL documents_PDF.exe
4960	DHL documents_PDF.exe
4960	DHL documents_PDF.exe
4960	DHL documents_PDF.exe
4960	DHL documents_PDF.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe
4520	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4960	DHL documents_PDF.exe
4960	DHL documents_PDF.exe
4960	DHL documents_PDF.exe
4960	DHL documents_PDF.exe
4520	rundll32.exe
4520	rundll32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4892	DHL documents_PDF.exe
Token: SeDebugPrivilege	4960	DHL documents_PDF.exe
Token: SeDebugPrivilege	4520	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 3956	4892	DHL documents_PDF.exe	87
PID 4892 wrote to memory of 3956	4892	DHL documents_PDF.exe	87
PID 4892 wrote to memory of 3956	4892	DHL documents_PDF.exe	87
PID 4892 wrote to memory of 4960	4892	DHL documents_PDF.exe	88
PID 4892 wrote to memory of 4960	4892	DHL documents_PDF.exe	88
PID 4892 wrote to memory of 4960	4892	DHL documents_PDF.exe	88
PID 4892 wrote to memory of 4960	4892	DHL documents_PDF.exe	88
PID 4892 wrote to memory of 4960	4892	DHL documents_PDF.exe	88
PID 4892 wrote to memory of 4960	4892	DHL documents_PDF.exe	88
PID 4960 wrote to memory of 4520	4960	DHL documents_PDF.exe	91
PID 4960 wrote to memory of 4520	4960	DHL documents_PDF.exe	91
PID 4960 wrote to memory of 4520	4960	DHL documents_PDF.exe	91
PID 4520 wrote to memory of 1960	4520	rundll32.exe	92
PID 4520 wrote to memory of 1960	4520	rundll32.exe	92
PID 4520 wrote to memory of 1960	4520	rundll32.exe	92

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3436
- C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\DHL documents_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:4892
- - C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"
    3⤵
    PID:3956
- - C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"
    3⤵
    - 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:4960
  - - C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\SysWOW64\rundll32.exe"
      4⤵
      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:4520
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:1960

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/3436-18-0x0000000008B50000-0x0000000008CCB000-memory.dmp

Filesize
1.5MB

Download
memory/3436-33-0x0000000008CD0000-0x0000000008E3A000-memory.dmp

Filesize
1.4MB

Download
memory/3436-31-0x0000000008CD0000-0x0000000008E3A000-memory.dmp

Filesize
1.4MB

Download
memory/3436-30-0x0000000008CD0000-0x0000000008E3A000-memory.dmp

Filesize
1.4MB

Download
memory/3436-26-0x0000000002F00000-0x0000000002FD1000-memory.dmp

Filesize
836KB

Download
memory/3436-22-0x0000000002F00000-0x0000000002FD1000-memory.dmp

Filesize
836KB

Download
memory/4520-27-0x0000000000860000-0x000000000088F000-memory.dmp

Filesize
188KB

Download
memory/4520-25-0x0000000000AA0000-0x0000000000AB4000-memory.dmp

Filesize
80KB

Download
memory/4520-23-0x0000000000AA0000-0x0000000000AB4000-memory.dmp

Filesize
80KB

Download
memory/4892-13-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4892-6-0x00000000072D0000-0x00000000072E2000-memory.dmp

Filesize
72KB

Download
memory/4892-1-0x0000000000F20000-0x0000000000FBE000-memory.dmp

Filesize
632KB

Download
memory/4892-0-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/4892-2-0x0000000005F00000-0x00000000064A4000-memory.dmp

Filesize
5.6MB

Download
memory/4892-10-0x0000000009C70000-0x0000000009D0C000-memory.dmp

Filesize
624KB

Download
memory/4892-3-0x00000000059F0000-0x0000000005A82000-memory.dmp

Filesize
584KB

Download
memory/4892-9-0x0000000007580000-0x00000000075F6000-memory.dmp

Filesize
472KB

Download
memory/4892-8-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4892-5-0x00000000748A0000-0x0000000075050000-memory.dmp

Filesize
7.7MB

Download
memory/4892-4-0x0000000005970000-0x000000000597A000-memory.dmp

Filesize
40KB

Download
memory/4892-7-0x00000000748AE000-0x00000000748AF000-memory.dmp

Filesize
4KB

Download
memory/4960-17-0x00000000014B0000-0x00000000014C4000-memory.dmp

Filesize
80KB

Download
memory/4960-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4960-21-0x0000000002D80000-0x0000000002D94000-memory.dmp

Filesize
80KB

Download
memory/4960-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4960-14-0x0000000000FE0000-0x000000000132A000-memory.dmp

Filesize
3.3MB

Download
memory/4960-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download