formbook | 10f8aa639591b698d193797e313b6b8243e0c865a0df2ad7a41234632d471440

General

Target

5TbQhXL8NUdBceg.exe
Size

746KB
MD5

fc3a43360662f6208ca669d161957b58
SHA1

16d7ba64dacfbfb96d9577d0e9197a578ca5fcbd
SHA256

8af00e7a5aa93e2c083481d3b4e5b94f7d1844aab13f13fde1b27a986f38f662
SHA512

eb963fdc482fe1131fe0819bc63182107bd3a6570613c8bee889e43ada102452c9d99576055002be4fa9f3fd906db911f68f267115bcd8376058c57b0c076608
SSDEEP

12288:WqdBj0z1Cat1UoIG5MPU0wOqp0473y4qdDNPjyu9Jyq3qQLhqpu1aqyCgW+8jd9:faDUobyTkpL7yPDLhqpkaqyW+8jd9

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/2904-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2904-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2788-21-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2696	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1428 set thread context of 2904	1428	5TbQhXL8NUdBceg.exe	30
PID 2904 set thread context of 1212	2904	5TbQhXL8NUdBceg.exe	21
PID 2788 set thread context of 1212	2788	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	5TbQhXL8NUdBceg.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 30 IoCs

pid	Process
1428	5TbQhXL8NUdBceg.exe
1428	5TbQhXL8NUdBceg.exe
2904	5TbQhXL8NUdBceg.exe
2904	5TbQhXL8NUdBceg.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe
2788	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2904	5TbQhXL8NUdBceg.exe
2904	5TbQhXL8NUdBceg.exe
2904	5TbQhXL8NUdBceg.exe
2788	systray.exe
2788	systray.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1428	5TbQhXL8NUdBceg.exe
Token: SeDebugPrivilege	2904	5TbQhXL8NUdBceg.exe
Token: SeDebugPrivilege	2788	systray.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1428 wrote to memory of 2904	1428	5TbQhXL8NUdBceg.exe	30
PID 1428 wrote to memory of 2904	1428	5TbQhXL8NUdBceg.exe	30
PID 1428 wrote to memory of 2904	1428	5TbQhXL8NUdBceg.exe	30
PID 1428 wrote to memory of 2904	1428	5TbQhXL8NUdBceg.exe	30
PID 1428 wrote to memory of 2904	1428	5TbQhXL8NUdBceg.exe	30
PID 1428 wrote to memory of 2904	1428	5TbQhXL8NUdBceg.exe	30
PID 1428 wrote to memory of 2904	1428	5TbQhXL8NUdBceg.exe	30
PID 1212 wrote to memory of 2788	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2788	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2788	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2788	1212	Explorer.EXE	31
PID 2788 wrote to memory of 2696	2788	systray.exe	32
PID 2788 wrote to memory of 2696	2788	systray.exe	32
PID 2788 wrote to memory of 2696	2788	systray.exe	32
PID 2788 wrote to memory of 2696	2788	systray.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\5TbQhXL8NUdBceg.exe
  "C:\Users\Admin\AppData\Local\Temp\5TbQhXL8NUdBceg.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1428
- - C:\Users\Admin\AppData\Local\Temp\5TbQhXL8NUdBceg.exe
    "C:\Users\Admin\AppData\Local\Temp\5TbQhXL8NUdBceg.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2904
- 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:2788
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\5TbQhXL8NUdBceg.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2696

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/1212-17-0x0000000003C30000-0x0000000003E30000-memory.dmp

Filesize
2.0MB

Download
memory/1212-22-0x0000000006EA0000-0x0000000006FC2000-memory.dmp

Filesize
1.1MB

Download
memory/1212-18-0x0000000006EA0000-0x0000000006FC2000-memory.dmp

Filesize
1.1MB

Download
memory/1428-5-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/1428-3-0x00000000002A0000-0x00000000002B8000-memory.dmp

Filesize
96KB

Download
memory/1428-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

Filesize
4KB

Download
memory/1428-6-0x0000000004750000-0x00000000047C6000-memory.dmp

Filesize
472KB

Download
memory/1428-1-0x0000000000E30000-0x0000000000EF0000-memory.dmp

Filesize
768KB

Download
memory/1428-4-0x00000000749EE000-0x00000000749EF000-memory.dmp

Filesize
4KB

Download
memory/1428-12-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/1428-2-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/2788-21-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2788-20-0x0000000000A30000-0x0000000000A35000-memory.dmp

Filesize
20KB

Download
memory/2788-19-0x0000000000A30000-0x0000000000A35000-memory.dmp

Filesize
20KB

Download
memory/2904-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2904-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2904-16-0x0000000000290000-0x00000000002A4000-memory.dmp

Filesize
80KB

Download
memory/2904-13-0x00000000008E0000-0x0000000000BE3000-memory.dmp

Filesize
3.0MB

Download
memory/2904-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2904-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2904-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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