formbook | e4947b26c5306a3abf3699d57d332983f1fd64c7d0b676e49f6dfa8bafca59d0

General

Target

pago SWift pdf.exe
Size

630KB
MD5

391975e669d455f1adecc5ca6a60f66a
SHA1

727851ce8c287a4c080994f891ed78352cc93b8e
SHA256

c76a77d2c81deab2fda96cc7cfcd42ca3886522b254ab6fa7448c7db8692e00a
SHA512

6629176a34216a678bfc8c4bb24056fc03e8a6c4a5d1314ec8f2d5b156cb0610a3eba666c3a3a5ef95964e54d00b83a41d937e038ba5270adec3dd3830468ec8
SSDEEP

12288:6MzAvm9T+nin+nin+ni3AqeFsfWNhRaNoLDSFI3cFHh20QL+niu:6aAO9T+in+in+iQNsfWnL2FucFg+i

Score

10^/10

formbook n7ak discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

Decoy

audereventur.com

huro14.com

wwwjinsha155.com

antiquevendor.com

samuraisoulfood.net

traffic4updates.download

hypersarv.com

rapport-happy-wedding.com

rokutechnosupport.online

allworljob.com

hanaleedossmann.com

kauai-marathon.com

bepbosch.com

kangen-international.com

zoneshopemenowz.com

belviderewrestling.com

ipllink.com

sellingforcreators.com

wwwswty6655.com

qtumboa.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/3960-12-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/3960-17-0x0000000000400000-0x000000000042D000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1572 set thread context of 3960	1572	pago SWift pdf.exe	91
PID 3960 set thread context of 3548	3960	pago SWift pdf.exe	56
PID 1264 set thread context of 3548	1264	chkdsk.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	pago SWift pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
3960	pago SWift pdf.exe
3960	pago SWift pdf.exe
3960	pago SWift pdf.exe
3960	pago SWift pdf.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe
1264	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3960	pago SWift pdf.exe
3960	pago SWift pdf.exe
3960	pago SWift pdf.exe
1264	chkdsk.exe
1264	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1572	pago SWift pdf.exe
Token: SeDebugPrivilege	3960	pago SWift pdf.exe
Token: SeDebugPrivilege	1264	chkdsk.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1572 wrote to memory of 3960	1572	pago SWift pdf.exe	91
PID 1572 wrote to memory of 3960	1572	pago SWift pdf.exe	91
PID 1572 wrote to memory of 3960	1572	pago SWift pdf.exe	91
PID 1572 wrote to memory of 3960	1572	pago SWift pdf.exe	91
PID 1572 wrote to memory of 3960	1572	pago SWift pdf.exe	91
PID 1572 wrote to memory of 3960	1572	pago SWift pdf.exe	91
PID 3548 wrote to memory of 1264	3548	Explorer.EXE	92
PID 3548 wrote to memory of 1264	3548	Explorer.EXE	92
PID 3548 wrote to memory of 1264	3548	Explorer.EXE	92
PID 1264 wrote to memory of 1896	1264	chkdsk.exe	93
PID 1264 wrote to memory of 1896	1264	chkdsk.exe	93
PID 1264 wrote to memory of 1896	1264	chkdsk.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3548
- C:\Users\Admin\AppData\Local\Temp\pago SWift pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\pago SWift pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1572
- - C:\Users\Admin\AppData\Local\Temp\pago SWift pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\pago SWift pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3960
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1264
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\pago SWift pdf.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

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/1264-20-0x0000000000350000-0x000000000035A000-memory.dmp

Filesize
40KB

Download
memory/1264-21-0x0000000000350000-0x000000000035A000-memory.dmp

Filesize
40KB

Download
memory/1572-10-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/1572-14-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/1572-4-0x0000000005A70000-0x0000000005B02000-memory.dmp

Filesize
584KB

Download
memory/1572-5-0x00000000059E0000-0x00000000059EA000-memory.dmp

Filesize
40KB

Download
memory/1572-6-0x00000000750B0000-0x0000000075860000-memory.dmp

Filesize
7.7MB

Download
memory/1572-7-0x0000000005C00000-0x0000000005C56000-memory.dmp

Filesize
344KB

Download
memory/1572-8-0x0000000005F70000-0x0000000005F7A000-memory.dmp

Filesize
40KB

Download
memory/1572-9-0x00000000750BE000-0x00000000750BF000-memory.dmp

Filesize
4KB

Download
memory/1572-0-0x00000000750BE000-0x00000000750BF000-memory.dmp

Filesize
4KB

Download
memory/1572-11-0x00000000016E0000-0x000000000173C000-memory.dmp

Filesize
368KB

Download
memory/1572-1-0x0000000000EA0000-0x0000000000F42000-memory.dmp

Filesize
648KB

Download
memory/1572-3-0x0000000005F80000-0x0000000006524000-memory.dmp

Filesize
5.6MB

Download
memory/1572-2-0x0000000005930000-0x00000000059CC000-memory.dmp

Filesize
624KB

Download
memory/3548-19-0x0000000009090000-0x000000000920B000-memory.dmp

Filesize
1.5MB

Download
memory/3548-22-0x0000000009090000-0x000000000920B000-memory.dmp

Filesize
1.5MB

Download
memory/3548-24-0x000000000ACC0000-0x000000000AE0D000-memory.dmp

Filesize
1.3MB

Download
memory/3548-25-0x000000000ACC0000-0x000000000AE0D000-memory.dmp

Filesize
1.3MB

Download
memory/3960-18-0x00000000011F0000-0x0000000001204000-memory.dmp

Filesize
80KB

Download
memory/3960-17-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3960-15-0x00000000012A0000-0x00000000015EA000-memory.dmp

Filesize
3.3MB

Download
memory/3960-12-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

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