formbook | 7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861

General

Target

PURCHASE ORDER170624.exe
Size

1.1MB
MD5

b0896ccaf97625a546e53df07bb98769
SHA1

39d66b58804ff0f1b600b910713118041f0ddd4b
SHA256

7e27edc8405ad4fdfcf6d5de75046b0dace6386f05dac3382629b0692274f861
SHA512

2aa7ead5dd4ef225acecd4d56d1735b7041e1e772e5c82f177561638d262daeff4aca86c14a1b1bcaef5d4cf538d65b3bd0d5842a3382559d7727a379f74e50f
SSDEEP

24576:1qDEvCTbMWu7rQYlBQcBiT6rprG8acGCRB5I89:1TvC/MTQYxsWR7acjp

Score

10^/10

formbook cn14 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cn14

Decoy

fgfdwr254u.xyz

arm-uk.com

qoachu.com

radiantpm.christmas

ghacor.delivery

lindasartgmbh.com

agroguasch.com

silverlinedevelopment.net

1000thb.com

bremwq.xyz

qweuiop.top

dental-implants-21860.bond

elotesaguafria.com

biagiottifraticelli.com

pureleafworks.com

mokomusic.com

lunarqr.shop

bestbuyprods.com

michaelsec.com

morganstore.net

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/1900-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1900-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2284-22-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2104 set thread context of 1900	2104	PURCHASE ORDER170624.exe	29
PID 1900 set thread context of 1256	1900	svchost.exe	20
PID 2284 set thread context of 1256	2284	cmstp.exe	20

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	PURCHASE ORDER170624.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1900	svchost.exe
1900	svchost.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe
2284	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2104	PURCHASE ORDER170624.exe
1900	svchost.exe
1900	svchost.exe
1900	svchost.exe
2284	cmstp.exe
2284	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1900	svchost.exe
Token: SeDebugPrivilege	2284	cmstp.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2104 wrote to memory of 1900	2104	PURCHASE ORDER170624.exe	29
PID 2104 wrote to memory of 1900	2104	PURCHASE ORDER170624.exe	29
PID 2104 wrote to memory of 1900	2104	PURCHASE ORDER170624.exe	29
PID 2104 wrote to memory of 1900	2104	PURCHASE ORDER170624.exe	29
PID 2104 wrote to memory of 1900	2104	PURCHASE ORDER170624.exe	29
PID 1256 wrote to memory of 2284	1256	Explorer.EXE	30
PID 1256 wrote to memory of 2284	1256	Explorer.EXE	30
PID 1256 wrote to memory of 2284	1256	Explorer.EXE	30
PID 1256 wrote to memory of 2284	1256	Explorer.EXE	30
PID 1256 wrote to memory of 2284	1256	Explorer.EXE	30
PID 1256 wrote to memory of 2284	1256	Explorer.EXE	30
PID 1256 wrote to memory of 2284	1256	Explorer.EXE	30
PID 2284 wrote to memory of 2028	2284	cmstp.exe	31
PID 2284 wrote to memory of 2028	2284	cmstp.exe	31
PID 2284 wrote to memory of 2028	2284	cmstp.exe	31
PID 2284 wrote to memory of 2028	2284	cmstp.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER170624.exe
  "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER170624.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER170624.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1900
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:2284
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1256-15-0x0000000000350000-0x0000000000450000-memory.dmp

Filesize
1024KB

Download
memory/1256-18-0x0000000004B90000-0x0000000004CD0000-memory.dmp

Filesize
1.2MB

Download
memory/1256-25-0x0000000004B90000-0x0000000004CD0000-memory.dmp

Filesize
1.2MB

Download
memory/1900-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1900-13-0x0000000000720000-0x0000000000A23000-memory.dmp

Filesize
3.0MB

Download
memory/1900-17-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/1900-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2104-11-0x0000000000150000-0x0000000000154000-memory.dmp

Filesize
16KB

Download
memory/2284-19-0x0000000000360000-0x0000000000378000-memory.dmp

Filesize
96KB

Download
memory/2284-21-0x0000000000360000-0x0000000000378000-memory.dmp

Filesize
96KB

Download
memory/2284-22-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download

Analysis

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