formbook | fe43b8fee96f78e23b43740ac4bf858ed7c255676dd6f7c1386c0017fc770855

General

Target

My order pdf.exe
Size

973KB
MD5

80c0e20bcbc0a9a1fe14fd381cbf2d18
SHA1

e5024ce6f861d605cc36aa732146d10b163c4340
SHA256

5ce5432b57df502d836094e69081a43011e6d62c3ea019c0943e7c305a17d059
SHA512

7bc014ac086f7147a831b0c887dae5485b31d4fe1e8341949b4364f8b1df2eedb14c0cf8749b59cd8e8802953f12f292efe2e02e5dc5b34e55d19ad8ae56b2b3
SSDEEP

12288:AtxaV1ki3Ir3TOAWg9ojA5xnLpdtLSCfC/wYB+aTY3gg+/SzS3O1r5:AtIVui3IrjIg9ojA5xnpkhRTDg+8

Score

10^/10

formbook o85a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

o85a

Decoy

lvmh.store

grantrec.online

pinkglam.net

springreno.com

moneynappress.com

disclegends.net

taizonee9.app

3365826.com

asdmohs19.website

atlantapolicy.com

rioinvestmentrd.com

alltriciashomemadegoodies.com

duanvidentcenter.com

whitelabelcasino.xyz

uptick.business

kickverseblade.store

malmotairi.com

nazhan.site

nehimiah.world

aero-bell.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/412-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/412-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3316-24-0x0000000000130000-0x000000000015F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3508 set thread context of 412	3508	My order pdf.exe	91
PID 412 set thread context of 3468	412	RegSvcs.exe	56
PID 3316 set thread context of 3468	3316	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	My order 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 42 IoCs

pid	Process
412	RegSvcs.exe
412	RegSvcs.exe
412	RegSvcs.exe
412	RegSvcs.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe
3316	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
412	RegSvcs.exe
412	RegSvcs.exe
412	RegSvcs.exe
3316	chkdsk.exe
3316	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	412	RegSvcs.exe
Token: SeDebugPrivilege	3316	chkdsk.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3508 wrote to memory of 412	3508	My order pdf.exe	91
PID 3508 wrote to memory of 412	3508	My order pdf.exe	91
PID 3508 wrote to memory of 412	3508	My order pdf.exe	91
PID 3508 wrote to memory of 412	3508	My order pdf.exe	91
PID 3508 wrote to memory of 412	3508	My order pdf.exe	91
PID 3508 wrote to memory of 412	3508	My order pdf.exe	91
PID 3468 wrote to memory of 3316	3468	Explorer.EXE	92
PID 3468 wrote to memory of 3316	3468	Explorer.EXE	92
PID 3468 wrote to memory of 3316	3468	Explorer.EXE	92
PID 3316 wrote to memory of 1496	3316	chkdsk.exe	93
PID 3316 wrote to memory of 1496	3316	chkdsk.exe	93
PID 3316 wrote to memory of 1496	3316	chkdsk.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3468
- C:\Users\Admin\AppData\Local\Temp\My order pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\My order pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3508
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:412
- 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:3316
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1496

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/412-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/412-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/412-19-0x0000000001730000-0x0000000001744000-memory.dmp

Filesize
80KB

Download
memory/412-16-0x00000000017C0000-0x0000000001B0A000-memory.dmp

Filesize
3.3MB

Download
memory/3316-24-0x0000000000130000-0x000000000015F000-memory.dmp

Filesize
188KB

Download
memory/3316-22-0x0000000000EE0000-0x0000000000EEA000-memory.dmp

Filesize
40KB

Download
memory/3316-21-0x0000000000EE0000-0x0000000000EEA000-memory.dmp

Filesize
40KB

Download
memory/3468-31-0x00000000088C0000-0x000000000895F000-memory.dmp

Filesize
636KB

Download
memory/3468-29-0x00000000088C0000-0x000000000895F000-memory.dmp

Filesize
636KB

Download
memory/3468-28-0x00000000088C0000-0x000000000895F000-memory.dmp

Filesize
636KB

Download
memory/3468-23-0x00000000034C0000-0x000000000359F000-memory.dmp

Filesize
892KB

Download
memory/3468-20-0x00000000034C0000-0x000000000359F000-memory.dmp

Filesize
892KB

Download
memory/3508-6-0x00000000083D0000-0x00000000083E8000-memory.dmp

Filesize
96KB

Download
memory/3508-7-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

Filesize
4KB

Download
memory/3508-15-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/3508-11-0x000000000AE70000-0x000000000AF0C000-memory.dmp

Filesize
624KB

Download
memory/3508-10-0x000000000AD50000-0x000000000ADD6000-memory.dmp

Filesize
536KB

Download
memory/3508-9-0x000000000AC10000-0x000000000AC1C000-memory.dmp

Filesize
48KB

Download
memory/3508-8-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/3508-12-0x000000000ADF0000-0x000000000AE30000-memory.dmp

Filesize
256KB

Download
memory/3508-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

Filesize
4KB

Download
memory/3508-4-0x00000000056E0000-0x00000000056EA000-memory.dmp

Filesize
40KB

Download
memory/3508-5-0x0000000074A10000-0x00000000751C0000-memory.dmp

Filesize
7.7MB

Download
memory/3508-3-0x0000000005700000-0x0000000005792000-memory.dmp

Filesize
584KB

Download
memory/3508-2-0x0000000005CB0000-0x0000000006254000-memory.dmp

Filesize
5.6MB

Download
memory/3508-1-0x0000000000BF0000-0x0000000000CE8000-memory.dmp

Filesize
992KB

Download

Analysis

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