formbook | d612f5bbe5a52c3bfa7bae355fea53d60f252f0bad240bf12af3d31666b5fcf1

General

Target

AGRUBU 0550.06092023.pdf.exe
Size

467KB
MD5

6e108faf5eeb7791325b1059ecbe617b
SHA1

1681e84c42516e88b50f2b7b51555baea1db50d1
SHA256

d612f5bbe5a52c3bfa7bae355fea53d60f252f0bad240bf12af3d31666b5fcf1
SHA512

ae524ca31944958a2fc27c35725c57e8881656b242d5f2dcf964112393f014c9ddea77d5b9b1f386dcd00ed6599324fea9978a3d43935f6c0773544e608606a2
SSDEEP

6144:+Ya6vdMC5muIKMGOZ9pgeOr+Nr+cNo0XUuvNS:+YXpkaCpTN5Uu0

Score

10^/10

formbook sn84 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sn84

Decoy

psptek.com

seshoo.com

dogwalknwoof.com

teamdaigle.com

mimzevents.com

algerimarket.com

rr251r55r.xyz

indialgbtq.com

huatongdk.com

couplecoaches.com

fleshlierwickerwork.com

ambito365.store

hoaified.com

shunsuikeji.com

uiomke.xyz

xn--12c4dfj4gtc.net

pika-moon.fun

breakingbarriersglobal.com

aqua-ammo.com

nmc380.top

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/1660-61-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1660-64-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/552-71-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook
behavioral1/memory/552-73-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
1716	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
816	AGRUBU 0550.06092023.pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 816 set thread context of 1660	816	AGRUBU 0550.06092023.pdf.exe	27
PID 1660 set thread context of 1308	1660	AGRUBU 0550.06092023.pdf.exe	14
PID 552 set thread context of 1308	552	wuapp.exe	14

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1660	AGRUBU 0550.06092023.pdf.exe
1660	AGRUBU 0550.06092023.pdf.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe
552	wuapp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1308	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
816	AGRUBU 0550.06092023.pdf.exe
1660	AGRUBU 0550.06092023.pdf.exe
1660	AGRUBU 0550.06092023.pdf.exe
1660	AGRUBU 0550.06092023.pdf.exe
552	wuapp.exe
552	wuapp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1660	AGRUBU 0550.06092023.pdf.exe
Token: SeDebugPrivilege	552	wuapp.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1308	Explorer.EXE
1308	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1308	Explorer.EXE
1308	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 816 wrote to memory of 1660	816	AGRUBU 0550.06092023.pdf.exe	27
PID 816 wrote to memory of 1660	816	AGRUBU 0550.06092023.pdf.exe	27
PID 816 wrote to memory of 1660	816	AGRUBU 0550.06092023.pdf.exe	27
PID 816 wrote to memory of 1660	816	AGRUBU 0550.06092023.pdf.exe	27
PID 816 wrote to memory of 1660	816	AGRUBU 0550.06092023.pdf.exe	27
PID 1308 wrote to memory of 552	1308	Explorer.EXE	28
PID 1308 wrote to memory of 552	1308	Explorer.EXE	28
PID 1308 wrote to memory of 552	1308	Explorer.EXE	28
PID 1308 wrote to memory of 552	1308	Explorer.EXE	28
PID 1308 wrote to memory of 552	1308	Explorer.EXE	28
PID 1308 wrote to memory of 552	1308	Explorer.EXE	28
PID 1308 wrote to memory of 552	1308	Explorer.EXE	28
PID 552 wrote to memory of 1716	552	wuapp.exe	29
PID 552 wrote to memory of 1716	552	wuapp.exe	29
PID 552 wrote to memory of 1716	552	wuapp.exe	29
PID 552 wrote to memory of 1716	552	wuapp.exe	29

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:1308
- C:\Users\Admin\AppData\Local\Temp\AGRUBU 0550.06092023.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\AGRUBU 0550.06092023.pdf.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:816
- - C:\Users\Admin\AppData\Local\Temp\AGRUBU 0550.06092023.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\AGRUBU 0550.06092023.pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1660
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:552
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\AGRUBU 0550.06092023.pdf.exe"
    3⤵
    - Deletes itself
    PID:1716

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

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nst401F.tmp\iigjewvs.dll

Filesize
39KB

MD5
5ee95722cd3e90cbf1a3be45fec95b11

SHA1
ff089d1a7de8e57acf4641a1c76b2a674200d17c

SHA256
aee412816bc56ea7fde9b2951d4189a8f502e76d4c210b309a9931286e9335b6

SHA512
f34c49f609a482c1bf36d904667d480ce0d62034473d696cd1e49b3af5c0eb261e8696e1aa14d20a88deced703793a42875a910fa83b06a6f4ce78bd26cbf4aa

Download Submit
memory/552-76-0x0000000000840000-0x00000000008D3000-memory.dmp

Filesize
588KB

Download
memory/552-70-0x0000000000C80000-0x0000000000C8B000-memory.dmp

Filesize
44KB

Download
memory/552-71-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/552-73-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/552-72-0x0000000002090000-0x0000000002393000-memory.dmp

Filesize
3.0MB

Download
memory/552-68-0x0000000000C80000-0x0000000000C8B000-memory.dmp

Filesize
44KB

Download
memory/1308-66-0x0000000006160000-0x000000000627D000-memory.dmp

Filesize
1.1MB

Download
memory/1308-75-0x0000000004BC0000-0x0000000004CC0000-memory.dmp

Filesize
1024KB

Download
memory/1308-77-0x0000000006BC0000-0x0000000006CF7000-memory.dmp

Filesize
1.2MB

Download
memory/1308-78-0x0000000006BC0000-0x0000000006CF7000-memory.dmp

Filesize
1.2MB

Download
memory/1308-81-0x0000000006BC0000-0x0000000006CF7000-memory.dmp

Filesize
1.2MB

Download
memory/1660-63-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1660-65-0x00000000003E0000-0x00000000003F4000-memory.dmp

Filesize
80KB

Download
memory/1660-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1660-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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