formbook | 03269bda6be4990239d665ef46687005678b5d7cb217b7a65219d7927cc78420

Analysis

max time kernel
300s
max time network
290s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-09-2024 01:17

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General

Target

e-Invoice.exe
Size

1.1MB
MD5

9cff570bbd99193ba8618ba6c5491a13
SHA1

3848185fe5c08b05b27fbfa65cfadbf3096e908d
SHA256

ede8ae39d91066365f959fc9c98f0b47add88604ce95829a9618a15274faef3f
SHA512

191376aa71d6119d270a13692e8eadd06a492bc6777313fcc7bc27ebdc3244e902703bd8b206c3bfddf353131e1c2c9b7014e346649d1eb691d426d13764b34b
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaC+BJ8a3qVH/by3Q4w0jgo:7JZoQrbTFZY1iaC+wakmnw0X

Score

10^/10

formbook c89p discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c89p

Decoy

ftersaleb.top

dcustomdesgins.net

ostbet2024.live

rhgtrdjdjytkyhretrdjfytd.buzz

atauniversity.tech

idoctor365.net

x-design-courses-29670.bond

ellowold-pc.top

ransportationmmsytpro.top

areerfest.xyz

artiresbah-in.today

ijie.pro

torehousestudio.info

69-11-luxury-watches.shop

earing-tests-44243.bond

hits.shop

hzl9.bond

lood-test-jp-1.bond

livialiving.online

usymomsmakingmoney.online

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
behavioral1/memory/2340-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2340-7-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2028-12-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 320 set thread context of 2340	320	e-Invoice.exe	31
PID 2340 set thread context of 1192	2340	svchost.exe	21
PID 2028 set thread context of 1192	2028	chkdsk.exe	21

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	e-Invoice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 61 IoCs

pid	Process
2340	svchost.exe
2340	svchost.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe
2028	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
320	e-Invoice.exe
2340	svchost.exe
2340	svchost.exe
2340	svchost.exe
2028	chkdsk.exe
2028	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2340	svchost.exe
Token: SeDebugPrivilege	2028	chkdsk.exe
Token: SeShutdownPrivilege	1192	Explorer.EXE

Suspicious use of FindShellTrayWindow 9 IoCs

pid	Process
320	e-Invoice.exe
320	e-Invoice.exe
320	e-Invoice.exe
320	e-Invoice.exe
320	e-Invoice.exe
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
320	e-Invoice.exe
320	e-Invoice.exe
320	e-Invoice.exe
320	e-Invoice.exe
320	e-Invoice.exe
1192	Explorer.EXE
1192	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 320 wrote to memory of 2340	320	e-Invoice.exe	31
PID 320 wrote to memory of 2340	320	e-Invoice.exe	31
PID 320 wrote to memory of 2340	320	e-Invoice.exe	31
PID 320 wrote to memory of 2340	320	e-Invoice.exe	31
PID 320 wrote to memory of 2340	320	e-Invoice.exe	31
PID 1192 wrote to memory of 2028	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2028	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2028	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2028	1192	Explorer.EXE	32
PID 2028 wrote to memory of 2468	2028	chkdsk.exe	33
PID 2028 wrote to memory of 2468	2028	chkdsk.exe	33
PID 2028 wrote to memory of 2468	2028	chkdsk.exe	33
PID 2028 wrote to memory of 2468	2028	chkdsk.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\e-Invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\e-Invoice.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:320
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\e-Invoice.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2340
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/320-2-0x0000000003DA0000-0x00000000041A0000-memory.dmp

Filesize
4.0MB

Download
memory/1192-22-0x0000000005410000-0x000000000552D000-memory.dmp

Filesize
1.1MB

Download
memory/1192-20-0x0000000005410000-0x000000000552D000-memory.dmp

Filesize
1.1MB

Download
memory/1192-19-0x0000000005410000-0x000000000552D000-memory.dmp

Filesize
1.1MB

Download
memory/1192-13-0x0000000007840000-0x00000000079EC000-memory.dmp

Filesize
1.7MB

Download
memory/1192-9-0x0000000007840000-0x00000000079EC000-memory.dmp

Filesize
1.7MB

Download
memory/1192-6-0x0000000002AF0000-0x0000000002BF0000-memory.dmp

Filesize
1024KB

Download
memory/2028-12-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/2028-11-0x0000000000290000-0x0000000000297000-memory.dmp

Filesize
28KB

Download
memory/2028-10-0x0000000000290000-0x0000000000297000-memory.dmp

Filesize
28KB

Download
memory/2340-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2340-8-0x00000000001F0000-0x0000000000204000-memory.dmp

Filesize
80KB

Download
memory/2340-4-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/2340-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download