formbook | 7efa60e285e197bda5dfaea446f3288d9227725fe5e6f4f36731628585c23ff4

Analysis

max time kernel
145s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-11-2024 02:46

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General

Target

eeertttttttt.exe
Size

1.1MB
MD5

09297b4f56dc12e62c275f5f6b1be047
SHA1

d81acad6f198114321e3e875b9af0587d5fe6903
SHA256

445c05ab18917bcc80fe2e712ead44f6452ed03a4d06d0200d6e3cbf434997c3
SHA512

58c6def5651c8f7536fc20b0d6eb60139a44c4951f7705711d30ddb383f42c4c67fcc24e461c2958c0780f480a766bf5a93bd34d0febdb5eefbc51ddb056234d
SSDEEP

24576:ktb20pkaCqT5TBWgNQ7ajAHvAxlZafyBMP/6A:NVg5tQ7ajaorUqBM35

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/1444-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1444-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3492-18-0x00000000006C0000-0x00000000006EF000-memory.dmp	formbook
behavioral2/memory/3492-20-0x00000000006C0000-0x00000000006EF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3680 set thread context of 1444	3680	eeertttttttt.exe	83
PID 1444 set thread context of 3532	1444	svchost.exe	56
PID 3492 set thread context of 3532	3492	msiexec.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	eeertttttttt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
1444	svchost.exe
1444	svchost.exe
1444	svchost.exe
1444	svchost.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe
3492	msiexec.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
3680	eeertttttttt.exe
1444	svchost.exe
1444	svchost.exe
1444	svchost.exe
3492	msiexec.exe
3492	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1444	svchost.exe
Token: SeDebugPrivilege	3492	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3680	eeertttttttt.exe
3680	eeertttttttt.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3680	eeertttttttt.exe
3680	eeertttttttt.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3680 wrote to memory of 1444	3680	eeertttttttt.exe	83
PID 3680 wrote to memory of 1444	3680	eeertttttttt.exe	83
PID 3680 wrote to memory of 1444	3680	eeertttttttt.exe	83
PID 3680 wrote to memory of 1444	3680	eeertttttttt.exe	83
PID 3532 wrote to memory of 3492	3532	Explorer.EXE	84
PID 3532 wrote to memory of 3492	3532	Explorer.EXE	84
PID 3532 wrote to memory of 3492	3532	Explorer.EXE	84
PID 3492 wrote to memory of 3628	3492	msiexec.exe	86
PID 3492 wrote to memory of 3628	3492	msiexec.exe	86
PID 3492 wrote to memory of 3628	3492	msiexec.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Users\Admin\AppData\Local\Temp\eeertttttttt.exe
  "C:\Users\Admin\AppData\Local\Temp\eeertttttttt.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:3680
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\eeertttttttt.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1444
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.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:3492
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3628

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/1444-11-0x0000000000DE0000-0x0000000000DF4000-memory.dmp

Filesize
80KB

Download
memory/1444-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1444-8-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/1444-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3492-17-0x0000000000060000-0x0000000000072000-memory.dmp

Filesize
72KB

Download
memory/3492-13-0x0000000000060000-0x0000000000072000-memory.dmp

Filesize
72KB

Download
memory/3492-15-0x0000000000060000-0x0000000000072000-memory.dmp

Filesize
72KB

Download
memory/3492-18-0x00000000006C0000-0x00000000006EF000-memory.dmp

Filesize
188KB

Download
memory/3492-19-0x0000000002590000-0x00000000028DA000-memory.dmp

Filesize
3.3MB

Download
memory/3492-20-0x00000000006C0000-0x00000000006EF000-memory.dmp

Filesize
188KB

Download
memory/3492-23-0x00000000023F0000-0x0000000002483000-memory.dmp

Filesize
588KB

Download
memory/3532-12-0x00000000082F0000-0x0000000008483000-memory.dmp

Filesize
1.6MB

Download
memory/3532-21-0x00000000082F0000-0x0000000008483000-memory.dmp

Filesize
1.6MB

Download
memory/3532-26-0x00000000089B0000-0x0000000008B23000-memory.dmp

Filesize
1.4MB

Download
memory/3532-27-0x00000000089B0000-0x0000000008B23000-memory.dmp

Filesize
1.4MB

Download
memory/3532-29-0x00000000089B0000-0x0000000008B23000-memory.dmp

Filesize
1.4MB

Download
memory/3680-6-0x0000000000DA0000-0x00000000011A0000-memory.dmp

Filesize
4.0MB

Download