formbook | e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779

General

Target

e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe
Size

753KB
MD5

194e6e2cb1b914c33e5d0ea233f7a813
SHA1

82eb016de527bdee7cc391219e1e6cdcdb64ad3d
SHA256

e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779
SHA512

4cf030e4d43791e0c2006dffb7619e2a1f2b8ca596db01d8e3091b99f04b1d93a5ef36c21fda3189837e4901cc750f0c8c6a9ead93af67c5148c6b663242681b

Score

10^/10

formbook fs8 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fs8

Decoy

deanpalm.net

dinu-living.com

setsomegoals.com

craftyfresh.email

cleantons.com

szysjfjx.com

shestakova.info

70skinstore.com

ampletrade.ltd

cmmcwomen.group

michinoeki-taka.com

auntoni.com

huochegw.com

abovekulture.com

gzjige.com

americastandproudagain.com

hobbyhousekennels.com

1020waterviewdrive.com

5927399.com

gabipareras.net

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/600-64-0x000000000041ECD0-mapping.dmp	formbook
behavioral1/memory/600-63-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/600-66-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/564-73-0x00000000000D0000-0x00000000000FE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 456 set thread context of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 600 set thread context of 1260	600	RegSvcs.exe	18
PID 564 set thread context of 1260	564	wininit.exe	18

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1280	schtasks.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
600	RegSvcs.exe
600	RegSvcs.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe
564	wininit.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
600	RegSvcs.exe
600	RegSvcs.exe
600	RegSvcs.exe
564	wininit.exe
564	wininit.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe
Token: SeDebugPrivilege	600	RegSvcs.exe
Token: SeDebugPrivilege	564	wininit.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1260	Explorer.EXE
1260	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1260	Explorer.EXE
1260	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 456 wrote to memory of 1280	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	28
PID 456 wrote to memory of 1280	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	28
PID 456 wrote to memory of 1280	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	28
PID 456 wrote to memory of 1280	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	28
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 456 wrote to memory of 600	456	e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe	30
PID 1260 wrote to memory of 564	1260	Explorer.EXE	31
PID 1260 wrote to memory of 564	1260	Explorer.EXE	31
PID 1260 wrote to memory of 564	1260	Explorer.EXE	31
PID 1260 wrote to memory of 564	1260	Explorer.EXE	31
PID 564 wrote to memory of 1556	564	wininit.exe	32
PID 564 wrote to memory of 1556	564	wininit.exe	32
PID 564 wrote to memory of 1556	564	wininit.exe	32
PID 564 wrote to memory of 1556	564	wininit.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Users\Admin\AppData\Local\Temp\e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe
  "C:\Users\Admin\AppData\Local\Temp\e2cb7aaa6bdd1a9029dd1db1ac0107556641d03608b8e8d520229e216462d779.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:456
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kiAbIarP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC534.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1280
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:600
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:564
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC534.tmp

Filesize
1KB

MD5
5b5e95434dda65d091e56de094c42a7e

SHA1
dbb09a94bbe1468bc6cd017b5e33f05c54bb48f0

SHA256
56930acbe02cfc6113bdd4de785df6927309aae90821f66c8a5fd8d9fedebc25

SHA512
15667334252aee6cd60545ca0cff544dca74d59eefb4e43921880fdd36f00e0c631a83a575cdf8f0bf10ab6928c87ecde155326a13b8da1fa58abfb7eae8bc96

Download Submit
memory/456-54-0x0000000001030000-0x00000000010F2000-memory.dmp

Filesize
776KB

Download
memory/456-55-0x00000000005A0000-0x000000000060A000-memory.dmp

Filesize
424KB

Download
memory/456-56-0x0000000000570000-0x000000000058C000-memory.dmp

Filesize
112KB

Download
memory/456-57-0x0000000000CC0000-0x0000000000D1E000-memory.dmp

Filesize
376KB

Download
memory/564-75-0x0000000000890000-0x0000000000923000-memory.dmp

Filesize
588KB

Download
memory/564-74-0x0000000000A40000-0x0000000000D43000-memory.dmp

Filesize
3.0MB

Download
memory/564-73-0x00000000000D0000-0x00000000000FE000-memory.dmp

Filesize
184KB

Download
memory/564-72-0x0000000000F60000-0x0000000000F7A000-memory.dmp

Filesize
104KB

Download
memory/600-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/600-67-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/600-68-0x00000000002D0000-0x00000000002E4000-memory.dmp

Filesize
80KB

Download
memory/600-63-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/600-61-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/600-60-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1260-69-0x0000000004C90000-0x0000000004DE5000-memory.dmp

Filesize
1.3MB

Download
memory/1260-76-0x0000000004DF0000-0x0000000004F0E000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads