formbook | 01eeb7e57977c8d8d2edf9092e0fa57c0574676d71478949ad38cf6fdc902e4a

General

Target

Payment Advice $8000.pdf.exe
Size

1.1MB
MD5

853411ef6f70669a8333b503c2709c15
SHA1

da98ef73c0f864862a93482ce19f86ceff91ac1b
SHA256

6a1ff3a9d7b6cbba06c46cbe04433eacbffb7f62d20bdcb38ad7d50fc6d6fab6
SHA512

e9863dfe2b40f8284843c725161b5c0f63fd3559a4fe69398deb3e4d1a87e9fa9d121e63ea1787151d703ee1f87fb202b8fd3fd5ae68e70556240a676033b4ea
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaCErHiF0WHKgUytHxfMuxANhAQpAu:7JZoQrbTFZY1iaCyHq0eUoHRxAXAu

Score

10^/10

formbook k94g discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k94g

Decoy

nstandgoz.xyz

dhd-treatment-37310.bond

13s-braces-us-ze.fun

umdona.shop

96ph803ql.bond

kka9max.net

corporate-10.xyz

edicalassistance869840.online

lobalresources-bh.xyz

3145978.xyz

ovdaawebsite.online

etting-thailand.net

icloud.xyz

poxk.shop

25ks-ls72510.cyou

women.info

iwyrfbfvhv9.asia

luratu.xyz

ffordable-power-charger.today

edanuryilmaz.xyz

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/2728-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2728-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2764-11-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2248 set thread context of 2728	2248	Payment Advice $8000.pdf.exe	29
PID 2728 set thread context of 1252	2728	svchost.exe	20
PID 2764 set thread context of 1252	2764	raserver.exe	20

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	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payment Advice $8000.pdf.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2728	svchost.exe
2728	svchost.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe
2764	raserver.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2248	Payment Advice $8000.pdf.exe
2728	svchost.exe
2728	svchost.exe
2728	svchost.exe
2764	raserver.exe
2764	raserver.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2728	svchost.exe
Token: SeDebugPrivilege	2764	raserver.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2728	2248	Payment Advice $8000.pdf.exe	29
PID 2248 wrote to memory of 2728	2248	Payment Advice $8000.pdf.exe	29
PID 2248 wrote to memory of 2728	2248	Payment Advice $8000.pdf.exe	29
PID 2248 wrote to memory of 2728	2248	Payment Advice $8000.pdf.exe	29
PID 2248 wrote to memory of 2728	2248	Payment Advice $8000.pdf.exe	29
PID 1252 wrote to memory of 2764	1252	Explorer.EXE	30
PID 1252 wrote to memory of 2764	1252	Explorer.EXE	30
PID 1252 wrote to memory of 2764	1252	Explorer.EXE	30
PID 1252 wrote to memory of 2764	1252	Explorer.EXE	30
PID 2764 wrote to memory of 2852	2764	raserver.exe	31
PID 2764 wrote to memory of 2852	2764	raserver.exe	31
PID 2764 wrote to memory of 2852	2764	raserver.exe	31
PID 2764 wrote to memory of 2852	2764	raserver.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1252
- C:\Users\Admin\AppData\Local\Temp\Payment Advice $8000.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment Advice $8000.pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2248
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Advice $8000.pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2728
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2764
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1252-8-0x0000000004370000-0x0000000004441000-memory.dmp

Filesize
836KB

Download
memory/1252-12-0x0000000004370000-0x0000000004441000-memory.dmp

Filesize
836KB

Download
memory/1252-14-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/2248-2-0x0000000003250000-0x0000000003650000-memory.dmp

Filesize
4.0MB

Download
memory/2728-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2728-4-0x0000000000A40000-0x0000000000D43000-memory.dmp

Filesize
3.0MB

Download
memory/2728-7-0x0000000000150000-0x0000000000164000-memory.dmp

Filesize
80KB

Download
memory/2728-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2764-9-0x00000000003A0000-0x00000000003BC000-memory.dmp

Filesize
112KB

Download
memory/2764-10-0x00000000003A0000-0x00000000003BC000-memory.dmp

Filesize
112KB

Download
memory/2764-11-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download

Analysis

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