formbook | a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e

Analysis

max time kernel
148s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-12-2024 12:21

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General

Target

a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe
Size

848KB
MD5

01558475f7d940f2fd80c0f2e4819169
SHA1

56de61a2f8713d3f6711f85169bcf040f1cd6d5e
SHA256

a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e
SHA512

c6e26c54dfcd8eed8e864985c3b0cac8674667cf73b91377853744709ca7059e12268d2f8678b6b0b6579c71fe4a4ee6d3c006b9f60d7d65fbdcabdd0417ea34
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QLf99s6x2ABR7/ATY0kHgnC87og:ffmMv6Ckr7Mny5QLcMB5Mh7og

Score

10^/10

formbook cl21 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl21

Decoy

0001.shop

earch-parttimejobs.today

are888.top

akanhaunthipped.shop

othing-heyu.xyz

cadvirsor.net

nclanalae.shop

lectric-cars-mexico.today

oxj-question.xyz

ersonalloanoffers.today

ersonalloans-fo54-fo37.click

verybody-ewfx.xyz

ercuremontauban.media

azilimdunyam.net

airs-clinicato.today

wiftsscend.click

ertainly-jbws.xyz

8xeng.app

damekadmitageable.cfd

ollapsedec.shop

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4612-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4612-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4612-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2316-20-0x0000000000190000-0x00000000001BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 5040 set thread context of 4612	5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe	83
PID 4612 set thread context of 3520	4612	svchost.exe	56
PID 4612 set thread context of 3520	4612	svchost.exe	56
PID 2316 set thread context of 3520	2316	mstsc.exe	56

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4612	svchost.exe
4612	svchost.exe
4612	svchost.exe
4612	svchost.exe
4612	svchost.exe
4612	svchost.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe
2316	mstsc.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe
4612	svchost.exe
4612	svchost.exe
4612	svchost.exe
4612	svchost.exe
2316	mstsc.exe
2316	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4612	svchost.exe
Token: SeDebugPrivilege	2316	mstsc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe
5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe
5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 4612	5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe	83
PID 5040 wrote to memory of 4612	5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe	83
PID 5040 wrote to memory of 4612	5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe	83
PID 5040 wrote to memory of 4612	5040	a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe	83
PID 3520 wrote to memory of 2316	3520	Explorer.EXE	85
PID 3520 wrote to memory of 2316	3520	Explorer.EXE	85
PID 3520 wrote to memory of 2316	3520	Explorer.EXE	85
PID 2316 wrote to memory of 1456	2316	mstsc.exe	86
PID 2316 wrote to memory of 1456	2316	mstsc.exe	86
PID 2316 wrote to memory of 1456	2316	mstsc.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3520
- C:\Users\Admin\AppData\Local\Temp\a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe
  "C:\Users\Admin\AppData\Local\Temp\a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:5040
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\a4fa23e8786de563fd0eef88e32ea883672dc02c823f119ee8ffc82c0c0b6f9e.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4612
- 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:2316
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1456

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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/2316-17-0x0000000000520000-0x000000000065A000-memory.dmp

Filesize
1.2MB

Download
memory/2316-20-0x0000000000190000-0x00000000001BF000-memory.dmp

Filesize
188KB

Download
memory/2316-19-0x0000000000520000-0x000000000065A000-memory.dmp

Filesize
1.2MB

Download
memory/3520-27-0x0000000007E70000-0x0000000007F3C000-memory.dmp

Filesize
816KB

Download
memory/3520-26-0x0000000007E70000-0x0000000007F3C000-memory.dmp

Filesize
816KB

Download
memory/3520-24-0x0000000007E70000-0x0000000007F3C000-memory.dmp

Filesize
816KB

Download
memory/3520-21-0x0000000008640000-0x0000000008765000-memory.dmp

Filesize
1.1MB

Download
memory/3520-11-0x0000000002D40000-0x0000000002E0F000-memory.dmp

Filesize
828KB

Download
memory/3520-15-0x0000000008640000-0x0000000008765000-memory.dmp

Filesize
1.1MB

Download
memory/3520-16-0x0000000002D40000-0x0000000002E0F000-memory.dmp

Filesize
828KB

Download
memory/4612-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4612-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4612-14-0x0000000003670000-0x0000000003684000-memory.dmp

Filesize
80KB

Download
memory/4612-10-0x0000000001D40000-0x0000000001D54000-memory.dmp

Filesize
80KB

Download
memory/4612-7-0x0000000001900000-0x0000000001C4A000-memory.dmp

Filesize
3.3MB

Download
memory/4612-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5040-5-0x00000000016B0000-0x00000000016B4000-memory.dmp

Filesize
16KB

Download