formbook | 37fabfdbe721b17601f7efa9059bf2c2cf71bb0689c1d5e6a4672fedd6f1e227

Analysis

max time kernel
147s
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
02-01-2025 13:48

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General

Target

Invoice for AWB charges.exe
Size

850KB
MD5

fce27267d3d20b4f8c4900f02085c640
SHA1

d3ff8bf9a8c434c478f33a05d9fb9d5dc58cb2a5
SHA256

65ea5f1ec926c56de31055f613a1bb09df0ba94228a02e5eea4e54f5f12b6bab
SHA512

3ce03e7a9d1da1b67875bdf52867e305bfbef9d39fdabd204cc23486e7bb808e13f97fb7278b9f8d9c25b508f0f0fdff4a995899c101b90725a45b45240b3b90
SSDEEP

12288:rLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QLuYa5kPiUA/XrRcHXRvEYtlJ:ffmMv6Ckr7Mny5QLVip9CvEYnJ

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/1596-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1596-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1596-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4316-18-0x0000000001200000-0x000000000122F000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1040 set thread context of 1596	1040	Invoice for AWB charges.exe	85
PID 1596 set thread context of 3432	1596	svchost.exe	56
PID 1596 set thread context of 3432	1596	svchost.exe	56
PID 4316 set thread context of 3432	4316	NETSTAT.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	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Invoice for AWB charges.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
4316	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
1596	svchost.exe
1596	svchost.exe
1596	svchost.exe
1596	svchost.exe
1596	svchost.exe
1596	svchost.exe
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE
4316	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1040	Invoice for AWB charges.exe
1596	svchost.exe
1596	svchost.exe
1596	svchost.exe
1596	svchost.exe
4316	NETSTAT.EXE
4316	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1596	svchost.exe
Token: SeDebugPrivilege	4316	NETSTAT.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1040	Invoice for AWB charges.exe
1040	Invoice for AWB charges.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1040	Invoice for AWB charges.exe
1040	Invoice for AWB charges.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 1596	1040	Invoice for AWB charges.exe	85
PID 1040 wrote to memory of 1596	1040	Invoice for AWB charges.exe	85
PID 1040 wrote to memory of 1596	1040	Invoice for AWB charges.exe	85
PID 1040 wrote to memory of 1596	1040	Invoice for AWB charges.exe	85
PID 3432 wrote to memory of 4316	3432	Explorer.EXE	87
PID 3432 wrote to memory of 4316	3432	Explorer.EXE	87
PID 3432 wrote to memory of 4316	3432	Explorer.EXE	87
PID 4316 wrote to memory of 2444	4316	NETSTAT.EXE	94
PID 4316 wrote to memory of 2444	4316	NETSTAT.EXE	94
PID 4316 wrote to memory of 2444	4316	NETSTAT.EXE	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Users\Admin\AppData\Local\Temp\Invoice for AWB charges.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice for AWB charges.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:1040
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice for AWB charges.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1596
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4316
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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/1040-5-0x0000000003240000-0x0000000003244000-memory.dmp

Filesize
16KB

Download
memory/1596-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1596-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1596-10-0x0000000001A50000-0x0000000001A64000-memory.dmp

Filesize
80KB

Download
memory/1596-7-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/1596-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1596-14-0x0000000003360000-0x0000000003374000-memory.dmp

Filesize
80KB

Download
memory/3432-22-0x0000000007A00000-0x0000000007AE0000-memory.dmp

Filesize
896KB

Download
memory/3432-11-0x0000000003D60000-0x0000000003E17000-memory.dmp

Filesize
732KB

Download
memory/3432-15-0x0000000006C50000-0x0000000006D4E000-memory.dmp

Filesize
1016KB

Download
memory/3432-25-0x0000000007A00000-0x0000000007AE0000-memory.dmp

Filesize
896KB

Download
memory/3432-24-0x0000000007A00000-0x0000000007AE0000-memory.dmp

Filesize
896KB

Download
memory/3432-19-0x0000000006C50000-0x0000000006D4E000-memory.dmp

Filesize
1016KB

Download
memory/4316-16-0x00000000002B0000-0x00000000002BB000-memory.dmp

Filesize
44KB

Download
memory/4316-18-0x0000000001200000-0x000000000122F000-memory.dmp

Filesize
188KB

Download
memory/4316-17-0x00000000002B0000-0x00000000002BB000-memory.dmp

Filesize
44KB

Download