formbook | a49295eb05450317423570caab0b11d530192e5ae3e56002b2a6c3174bed597d

General

Target

download.exe
Size

181KB
MD5

794a509c76fc3641f14213e292cd2f96
SHA1

f714ddd2d33e9b819699b1988604c637d8883b09
SHA256

bcc71963343b162d9af725b69399e104ad4a9718ada6a764d3a0478500d96661
SHA512

5af28cc79606b82b1a8d60c2b22fecfc1c5a4e7b76f8df46b2d350657081c1fa937457a06f27d768b2ac47f6c8867ccfacc9b91e9e9002cabeb84d77b230a305
SSDEEP

3072:wpNDBJOQwi4pR0SsBeh9A9KoEjbhi/14fEMdSId8zOISCnmkJTV:+F+RpsUha9Knbhi/14fMIEhJnmS

Score

10^/10

formbook slpb discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

slpb

Decoy

specialhelmets.com

advancedfiberglassproducts.com

guelphneurotraining.com

yishan1314.com

1728025.com

drawbeirut.com

bacb.online

calsury.com

health-helper.net

athapparels.com

kwunitedtraining.com

locqueenpl.com

kastamonuekingrup.com

planctheatreproject.com

puschistiki.com

mutlob.com

naturalbuttonecuador.com

smellssoclean.com

rishpure.com

weldvolt.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2252-2-0x00000000002D0000-0x00000000002FE000-memory.dmp	formbook
behavioral1/memory/2252-5-0x00000000002D0000-0x00000000002FE000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2784	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 1204	2252	download.exe	21
PID 2252 set thread context of 1204	2252	download.exe	21
PID 2772 set thread context of 1204	2772	colorcpl.exe	21

System Location Discovery: System Language Discovery 1 TTPs 2 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	colorcpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2252	download.exe
2252	download.exe
2252	download.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe
2772	colorcpl.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2252	download.exe
2252	download.exe
2252	download.exe
2252	download.exe
2772	colorcpl.exe
2772	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	download.exe
Token: SeDebugPrivilege	2772	colorcpl.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 2772	1204	Explorer.EXE	30
PID 1204 wrote to memory of 2772	1204	Explorer.EXE	30
PID 1204 wrote to memory of 2772	1204	Explorer.EXE	30
PID 1204 wrote to memory of 2772	1204	Explorer.EXE	30
PID 2772 wrote to memory of 2784	2772	colorcpl.exe	31
PID 2772 wrote to memory of 2784	2772	colorcpl.exe	31
PID 2772 wrote to memory of 2784	2772	colorcpl.exe	31
PID 2772 wrote to memory of 2784	2772	colorcpl.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\download.exe
  "C:\Users\Admin\AppData\Local\Temp\download.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:2252
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.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:2772
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\download.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2784

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

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Downloads

memory/1204-3-0x0000000005200000-0x000000000535C000-memory.dmp

Filesize
1.4MB

Download
memory/1204-6-0x0000000006E40000-0x0000000006F83000-memory.dmp

Filesize
1.3MB

Download
memory/1204-7-0x0000000005200000-0x000000000535C000-memory.dmp

Filesize
1.4MB

Download
memory/1204-10-0x0000000006E40000-0x0000000006F83000-memory.dmp

Filesize
1.3MB

Download
memory/2252-0-0x0000000000910000-0x0000000000C13000-memory.dmp

Filesize
3.0MB

Download
memory/2252-2-0x00000000002D0000-0x00000000002FE000-memory.dmp

Filesize
184KB

Download
memory/2252-1-0x00000000002EE000-0x00000000002EF000-memory.dmp

Filesize
4KB

Download
memory/2252-5-0x00000000002D0000-0x00000000002FE000-memory.dmp

Filesize
184KB

Download
memory/2252-4-0x00000000002EE000-0x00000000002EF000-memory.dmp

Filesize
4KB

Download
memory/2772-8-0x00000000003A0000-0x00000000003B8000-memory.dmp

Filesize
96KB

Download
memory/2772-9-0x00000000003A0000-0x00000000003B8000-memory.dmp

Filesize
96KB

Download

Analysis

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