formbook | 8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-08-2024 12:00

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General

Target

Ii4XtPGi5n3AWmt.exe
Size

689KB
MD5

1965f06fb4c6e169c7014c90c5b93199
SHA1

a8a949da0262c8165e52fd84276b0f299a86db2b
SHA256

8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b
SHA512

f00216c9c9b5051b432d939217dfd90ecf7e6f0373f48db018c9e9faa6b25a56db496a125a9a53ffd5660283db92d36a32671725b84652d3100d1e60d9dc2746
SSDEEP

12288:z4UkfadvMq2bjiwAszlTRPipvBjxOqEEtMcLsfSbASQi8N0DjmEuv3/s0z3/rO:EUjVKmw5TZgkItMcLsfSbMqLwPb/r

Score

10^/10

formbook d16h discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

d16h

Decoy

iki-graphy.online

l8z8c.vip

1709.asia

inematography-course-72246.bond

pis3noe2e.sbs

wernv.xyz

ovepepe.xyz

ama-online.world

ookmouse.fun

harkclothingdesigns.xyz

bbvvjuiqew.bond

sed-cars-93620.bond

esgateeganhe.shop

cekmeledak.info

ebulahorizon.buzz

peakers-92991.bond

essislotgoal16.top

hafi.biz

ichunyang.club

lrica.net

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
behavioral2/memory/4624-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4624-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2588-23-0x0000000000EE0000-0x0000000000F0F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1596 set thread context of 4624	1596	Ii4XtPGi5n3AWmt.exe	95
PID 4624 set thread context of 3536	4624	Ii4XtPGi5n3AWmt.exe	56
PID 2588 set thread context of 3536	2588	mstsc.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Ii4XtPGi5n3AWmt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 56 IoCs

pid	Process
4624	Ii4XtPGi5n3AWmt.exe
4624	Ii4XtPGi5n3AWmt.exe
4624	Ii4XtPGi5n3AWmt.exe
4624	Ii4XtPGi5n3AWmt.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe
2588	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4624	Ii4XtPGi5n3AWmt.exe
4624	Ii4XtPGi5n3AWmt.exe
4624	Ii4XtPGi5n3AWmt.exe
2588	mstsc.exe
2588	mstsc.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	4624	Ii4XtPGi5n3AWmt.exe
Token: SeDebugPrivilege	2588	mstsc.exe
Token: SeShutdownPrivilege	3536	Explorer.EXE
Token: SeCreatePagefilePrivilege	3536	Explorer.EXE
Token: SeShutdownPrivilege	3536	Explorer.EXE
Token: SeCreatePagefilePrivilege	3536	Explorer.EXE
Token: SeShutdownPrivilege	3536	Explorer.EXE
Token: SeCreatePagefilePrivilege	3536	Explorer.EXE
Token: SeShutdownPrivilege	3536	Explorer.EXE
Token: SeCreatePagefilePrivilege	3536	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3536	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1596 wrote to memory of 4624	1596	Ii4XtPGi5n3AWmt.exe	95
PID 1596 wrote to memory of 4624	1596	Ii4XtPGi5n3AWmt.exe	95
PID 1596 wrote to memory of 4624	1596	Ii4XtPGi5n3AWmt.exe	95
PID 1596 wrote to memory of 4624	1596	Ii4XtPGi5n3AWmt.exe	95
PID 1596 wrote to memory of 4624	1596	Ii4XtPGi5n3AWmt.exe	95
PID 1596 wrote to memory of 4624	1596	Ii4XtPGi5n3AWmt.exe	95
PID 3536 wrote to memory of 2588	3536	Explorer.EXE	96
PID 3536 wrote to memory of 2588	3536	Explorer.EXE	96
PID 3536 wrote to memory of 2588	3536	Explorer.EXE	96
PID 2588 wrote to memory of 2084	2588	mstsc.exe	97
PID 2588 wrote to memory of 2084	2588	mstsc.exe	97
PID 2588 wrote to memory of 2084	2588	mstsc.exe	97

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3536
- C:\Users\Admin\AppData\Local\Temp\Ii4XtPGi5n3AWmt.exe
  "C:\Users\Admin\AppData\Local\Temp\Ii4XtPGi5n3AWmt.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1596
- - C:\Users\Admin\AppData\Local\Temp\Ii4XtPGi5n3AWmt.exe
    "C:\Users\Admin\AppData\Local\Temp\Ii4XtPGi5n3AWmt.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4624
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:2588
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Ii4XtPGi5n3AWmt.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2084

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/1596-6-0x0000000004FF0000-0x0000000005094000-memory.dmp

Filesize
656KB

Download
memory/1596-1-0x00000000002A0000-0x0000000000352000-memory.dmp

Filesize
712KB

Download
memory/1596-2-0x00000000051D0000-0x0000000005774000-memory.dmp

Filesize
5.6MB

Download
memory/1596-3-0x0000000004CC0000-0x0000000004D52000-memory.dmp

Filesize
584KB

Download
memory/1596-4-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/1596-5-0x0000000004C30000-0x0000000004C3A000-memory.dmp

Filesize
40KB

Download
memory/1596-14-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/1596-7-0x00000000062F0000-0x0000000006308000-memory.dmp

Filesize
96KB

Download
memory/1596-8-0x000000007528E000-0x000000007528F000-memory.dmp

Filesize
4KB

Download
memory/1596-9-0x0000000075280000-0x0000000075A30000-memory.dmp

Filesize
7.7MB

Download
memory/1596-10-0x0000000005E80000-0x0000000005EF6000-memory.dmp

Filesize
472KB

Download
memory/1596-11-0x0000000008730000-0x00000000087CC000-memory.dmp

Filesize
624KB

Download
memory/1596-0-0x000000007528E000-0x000000007528F000-memory.dmp

Filesize
4KB

Download
memory/2588-20-0x0000000000680000-0x00000000007BA000-memory.dmp

Filesize
1.2MB

Download
memory/2588-22-0x0000000000680000-0x00000000007BA000-memory.dmp

Filesize
1.2MB

Download
memory/2588-23-0x0000000000EE0000-0x0000000000F0F000-memory.dmp

Filesize
188KB

Download
memory/3536-19-0x00000000094D0000-0x00000000095FB000-memory.dmp

Filesize
1.2MB

Download
memory/3536-24-0x00000000094D0000-0x00000000095FB000-memory.dmp

Filesize
1.2MB

Download
memory/3536-26-0x0000000009910000-0x0000000009A31000-memory.dmp

Filesize
1.1MB

Download
memory/3536-28-0x0000000009910000-0x0000000009A31000-memory.dmp

Filesize
1.1MB

Download
memory/3536-29-0x0000000009910000-0x0000000009A31000-memory.dmp

Filesize
1.1MB

Download
memory/4624-15-0x0000000001490000-0x00000000017DA000-memory.dmp

Filesize
3.3MB

Download
memory/4624-18-0x0000000001450000-0x0000000001464000-memory.dmp

Filesize
80KB

Download
memory/4624-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4624-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download