formbook | e64639cc4061ca733acf32ca7518b8d30de90f26df61800683dc5817b5237ee2

Analysis

max time kernel
147s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08/01/2025, 15:25

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General

Target

newww.exe
Size

1.3MB
MD5

38679fcb06dc756b3c54419c716005a9
SHA1

06580c53336b0fa594443a721ba261c8f1c0ee51
SHA256

e64639cc4061ca733acf32ca7518b8d30de90f26df61800683dc5817b5237ee2
SHA512

d1fd881f03e19bcb77b09c13ae8befc77ac3227206c643b7f417c41aac5cb0775b89e402d936da9e51967a0bf495599c2c37766a065811660c00c8c9078a7a82
SSDEEP

24576:SqDEvCTbMWu7rQYlBQcBiT6rprG8aI4uOGIq1N8ZRMKauEh4p0BU6/+:STvC/MTQYxsWR7aI4J01NsRCuEFF/

Score

10^/10

formbook a02d discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

a02d

Decoy

coplus.market

oofing-jobs-74429.bond

healchemists.xyz

oofcarpenternearme-jp.xyz

enewebsolutions.online

harepoint.legal

88977.club

omptables.xyz

eat-pumps-31610.bond

endown.graphics

amsexgirls.website

ovevibes.xyz

u-thiensu.online

yblinds.xyz

rumpchiefofstaff.store

erzog.fun

rrm.lat

agiclime.pro

agaviet59.shop

lbdoanhnhan.net

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1864-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1864-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/532-12-0x0000000000910000-0x000000000093F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1816 set thread context of 1864	1816	newww.exe	82
PID 1864 set thread context of 3352	1864	svchost.exe	56
PID 532 set thread context of 3352	532	svchost.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	newww.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
1864	svchost.exe
1864	svchost.exe
1864	svchost.exe
1864	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe
532	svchost.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1816	newww.exe
1864	svchost.exe
1864	svchost.exe
1864	svchost.exe
532	svchost.exe
532	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	svchost.exe
Token: SeDebugPrivilege	532	svchost.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1816	newww.exe
1816	newww.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1816	newww.exe
1816	newww.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1816 wrote to memory of 1864	1816	newww.exe	82
PID 1816 wrote to memory of 1864	1816	newww.exe	82
PID 1816 wrote to memory of 1864	1816	newww.exe	82
PID 1816 wrote to memory of 1864	1816	newww.exe	82
PID 3352 wrote to memory of 532	3352	Explorer.EXE	91
PID 3352 wrote to memory of 532	3352	Explorer.EXE	91
PID 3352 wrote to memory of 532	3352	Explorer.EXE	91
PID 532 wrote to memory of 1488	532	svchost.exe	92
PID 532 wrote to memory of 1488	532	svchost.exe	92
PID 532 wrote to memory of 1488	532	svchost.exe	92

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Users\Admin\AppData\Local\Temp\newww.exe
  "C:\Users\Admin\AppData\Local\Temp\newww.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:1816
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\newww.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1864
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:3008
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:4848
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:4900
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:4240
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:3328
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:4480
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:968
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1960
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.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:532
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1488

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/532-11-0x0000000000D30000-0x0000000000D3E000-memory.dmp

Filesize
56KB

Download
memory/532-12-0x0000000000910000-0x000000000093F000-memory.dmp

Filesize
188KB

Download
memory/532-9-0x0000000000D30000-0x0000000000D3E000-memory.dmp

Filesize
56KB

Download
memory/1816-2-0x0000000001530000-0x0000000001930000-memory.dmp

Filesize
4.0MB

Download
memory/1864-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1864-7-0x0000000000D70000-0x0000000000D84000-memory.dmp

Filesize
80KB

Download
memory/1864-4-0x0000000001600000-0x000000000194A000-memory.dmp

Filesize
3.3MB

Download
memory/1864-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3352-8-0x0000000009540000-0x0000000009665000-memory.dmp

Filesize
1.1MB

Download
memory/3352-13-0x0000000009540000-0x0000000009665000-memory.dmp

Filesize
1.1MB

Download
memory/3352-17-0x0000000002DF0000-0x0000000002EA9000-memory.dmp

Filesize
740KB

Download
memory/3352-18-0x0000000002DF0000-0x0000000002EA9000-memory.dmp

Filesize
740KB

Download
memory/3352-20-0x0000000002DF0000-0x0000000002EA9000-memory.dmp

Filesize
740KB

Download