formbook | d348cbf91ed1e466a286b17f93bf3fd27bb01de6ba91c76bf586788bf16876cb

General

Target

MSIC170.exe
Size

226KB
MD5

2eb5d3ef129f1a260919b4af6911a228
SHA1

5abb21082895b7d7d2a454b3a8080d4779a2ed5c
SHA256

d348cbf91ed1e466a286b17f93bf3fd27bb01de6ba91c76bf586788bf16876cb
SHA512

9c200d65f35cd6148897ca19d92563c1210abfb614e21d7f0afb749daee1b690e892ae5867d90b8ca69c77fc6b71d57325cb9f04e9c79917477537f5a8a8da5a

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.craftsman-vail.com/cca/

Decoy

whenpigsflyhigh.com

artistiklounge.com

tinytrendstique.com

projektpartner-ag.com

charvelevh.com

easycompliances.net

zengheqiye.com

professionalmallorca.com

bonzerstudio.com

nelivo.com

yangxeric.com

aredntech.com

twincitieshousingmarket.com

allshadesunscreen.com

xiang-life.net

qmcp00011.com

lindsayeandmarkv.com

fbcsbvsbvsjbvjs.com

saveonthrivelife.com

newdpo.com

Signatures

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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2020-64-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1920-72-0x0000000000090000-0x00000000000BE000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

568 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

MSIC170.exe

pid process

736 MSIC170.exe

pid	process
568	cmd.exe

pid	process
736	MSIC170.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

MSIC170.exeMSIC170.execmstp.exe

description	pid	process	target process
PID 736 set thread context of 2020	736	MSIC170.exe	MSIC170.exe
PID 2020 set thread context of 1204	2020	MSIC170.exe	Explorer.EXE
PID 1920 set thread context of 1204	1920	cmstp.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

MSIC170.execmstp.exe

pid	process
2020	MSIC170.exe
2020	MSIC170.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe
1920	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

MSIC170.exeMSIC170.execmstp.exe

pid process

736 MSIC170.exe
2020 MSIC170.exe
2020 MSIC170.exe
2020 MSIC170.exe
1920 cmstp.exe
1920 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

MSIC170.execmstp.exe

description pid process

Token: SeDebugPrivilege 2020 MSIC170.exe
Token: SeDebugPrivilege 1920 cmstp.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE

pid	process
1204	Explorer.EXE

pid	process
736	MSIC170.exe
2020	MSIC170.exe
2020	MSIC170.exe
2020	MSIC170.exe
1920	cmstp.exe
1920	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	2020	MSIC170.exe
Token: SeDebugPrivilege	1920	cmstp.exe

pid	process
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE

pid	process
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

MSIC170.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 736 wrote to memory of 2020	736	MSIC170.exe	MSIC170.exe
PID 736 wrote to memory of 2020	736	MSIC170.exe	MSIC170.exe
PID 736 wrote to memory of 2020	736	MSIC170.exe	MSIC170.exe
PID 736 wrote to memory of 2020	736	MSIC170.exe	MSIC170.exe
PID 736 wrote to memory of 2020	736	MSIC170.exe	MSIC170.exe
PID 1204 wrote to memory of 1920	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1920	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1920	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1920	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1920	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1920	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1920	1204	Explorer.EXE	cmstp.exe
PID 1920 wrote to memory of 568	1920	cmstp.exe	cmd.exe
PID 1920 wrote to memory of 568	1920	cmstp.exe	cmd.exe
PID 1920 wrote to memory of 568	1920	cmstp.exe	cmd.exe
PID 1920 wrote to memory of 568	1920	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Users\Admin\AppData\Local\Temp\MSIC170.exe
  "C:\Users\Admin\AppData\Local\Temp\MSIC170.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:736
- - C:\Users\Admin\AppData\Local\Temp\MSIC170.exe
    "C:\Users\Admin\AppData\Local\Temp\MSIC170.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2020
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1920
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\MSIC170.exe"
    3⤵
    - Deletes itself
    PID:568

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsc7ADB.tmp\qae1fnryutx.dll

MD5
e2552ee6ee0b13489230453d6ef860f3

SHA1
043969b1a93aa5c30cced7b59f305c0f264f3c15

SHA256
977f2af0e86ce5aa922ae960a24284f199c46152db8664cf8f0b004b96df87d3

SHA512
5d2c7001c5529e35ef001d617a206c85200cfd5f51b1ec406a6ecc2cd94e3eff3760f9fb808b4c033240e754501b228f9c79811c1ebad881ccbe9403bd686920

Download Submit
memory/568-71-0x0000000000000000-mapping.dmp

Download
memory/736-60-0x0000000075891000-0x0000000075893000-memory.dmp

Filesize
8KB

Download
memory/736-63-0x0000000000300000-0x0000000000302000-memory.dmp

Filesize
8KB

Download
memory/1204-75-0x0000000007140000-0x0000000007291000-memory.dmp

Filesize
1.3MB

Download
memory/1204-67-0x00000000041D0000-0x00000000042F5000-memory.dmp

Filesize
1.1MB

Download
memory/1920-73-0x0000000001ED0000-0x00000000021D3000-memory.dmp

Filesize
3.0MB

Download
memory/1920-74-0x0000000001CF0000-0x0000000001D83000-memory.dmp

Filesize
588KB

Download
memory/1920-72-0x0000000000090000-0x00000000000BE000-memory.dmp

Filesize
184KB

Download
memory/1920-68-0x0000000000000000-mapping.dmp

Download
memory/1920-70-0x00000000004C0000-0x00000000004D8000-memory.dmp

Filesize
96KB

Download
memory/2020-64-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2020-66-0x00000000002C0000-0x00000000002D4000-memory.dmp

Filesize
80KB

Download
memory/2020-65-0x0000000000830000-0x0000000000B33000-memory.dmp

Filesize
3.0MB

Download
memory/2020-62-0x000000000041EB70-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads