formbook | a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655

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 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2532-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2532-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2824-23-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2212	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1648 set thread context of 2532	1648	DHL documents_PDF.exe	32
PID 2532 set thread context of 1176	2532	DHL documents_PDF.exe	21
PID 2824 set thread context of 1176	2824	systray.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	DHL documents_PDF.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 33 IoCs

pid	Process
1648	DHL documents_PDF.exe
1648	DHL documents_PDF.exe
1648	DHL documents_PDF.exe
1648	DHL documents_PDF.exe
2532	DHL documents_PDF.exe
2532	DHL documents_PDF.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe
2824	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2532	DHL documents_PDF.exe
2532	DHL documents_PDF.exe
2532	DHL documents_PDF.exe
2824	systray.exe
2824	systray.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1648	DHL documents_PDF.exe
Token: SeDebugPrivilege	2532	DHL documents_PDF.exe
Token: SeDebugPrivilege	2824	systray.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 2020	1648	DHL documents_PDF.exe	31
PID 1648 wrote to memory of 2020	1648	DHL documents_PDF.exe	31
PID 1648 wrote to memory of 2020	1648	DHL documents_PDF.exe	31
PID 1648 wrote to memory of 2020	1648	DHL documents_PDF.exe	31
PID 1648 wrote to memory of 2532	1648	DHL documents_PDF.exe	32
PID 1648 wrote to memory of 2532	1648	DHL documents_PDF.exe	32
PID 1648 wrote to memory of 2532	1648	DHL documents_PDF.exe	32
PID 1648 wrote to memory of 2532	1648	DHL documents_PDF.exe	32
PID 1648 wrote to memory of 2532	1648	DHL documents_PDF.exe	32
PID 1648 wrote to memory of 2532	1648	DHL documents_PDF.exe	32
PID 1648 wrote to memory of 2532	1648	DHL documents_PDF.exe	32
PID 1176 wrote to memory of 2824	1176	Explorer.EXE	33
PID 1176 wrote to memory of 2824	1176	Explorer.EXE	33
PID 1176 wrote to memory of 2824	1176	Explorer.EXE	33
PID 1176 wrote to memory of 2824	1176	Explorer.EXE	33
PID 2824 wrote to memory of 2212	2824	systray.exe	34
PID 2824 wrote to memory of 2212	2824	systray.exe	34
PID 2824 wrote to memory of 2212	2824	systray.exe	34
PID 2824 wrote to memory of 2212	2824	systray.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1176
- 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:1648
- - C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"
    3⤵
    PID:2020
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2532
- 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:2824
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1176-19-0x0000000000230000-0x0000000000330000-memory.dmp

Filesize
1024KB

Download
memory/1176-24-0x0000000005160000-0x0000000005296000-memory.dmp

Filesize
1.2MB

Download
memory/1176-20-0x0000000005160000-0x0000000005296000-memory.dmp

Filesize
1.2MB

Download
memory/1648-5-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/1648-14-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/1648-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/1648-6-0x00000000052C0000-0x0000000005336000-memory.dmp

Filesize
472KB

Download
memory/1648-1-0x0000000000100000-0x000000000019E000-memory.dmp

Filesize
632KB

Download
memory/1648-4-0x00000000745DE000-0x00000000745DF000-memory.dmp

Filesize
4KB

Download
memory/1648-2-0x00000000745D0000-0x0000000074CBE000-memory.dmp

Filesize
6.9MB

Download
memory/1648-3-0x0000000000460000-0x0000000000472000-memory.dmp

Filesize
72KB

Download
memory/2532-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2532-15-0x0000000000A80000-0x0000000000D83000-memory.dmp

Filesize
3.0MB

Download
memory/2532-18-0x0000000000340000-0x0000000000354000-memory.dmp

Filesize
80KB

Download
memory/2532-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2532-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2532-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2532-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2824-22-0x0000000000C00000-0x0000000000C05000-memory.dmp

Filesize
20KB

Download
memory/2824-21-0x0000000000C00000-0x0000000000C05000-memory.dmp

Filesize
20KB

Download
memory/2824-23-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

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