formbook | b5c47964271578c767ebb7c3bfee10cda45464043d6e2879408f138da8031cf4

General

Target

Purchase Order.Pdf.exe
Size

984KB
MD5

6677a05c9b05d917b8654308183f9c5b
SHA1

6c7189656dfcdfb04298ae60b80a350d17100f5a
SHA256

b5c47964271578c767ebb7c3bfee10cda45464043d6e2879408f138da8031cf4
SHA512

2f8586af3a89fd200a4fc616f7db898c5199afd7d224144628ea9c80d1e22567507eefffa4eea5da20598c3d926a02d595fee69439623d252d35d9ddceef42dd

Score

10^/10

formbook rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.papablogzzi.com/obow/

Decoy

hinetin.net

narrativebusters.com

jesusmusicatl.com

mywellnessbooking.com

830272.com

mainrein.com

kajeoneworld.com

directaccesss.com

igsecretos.com

campbone.com

socialvidiots.com

abditrade.com

purisopropyl.com

opticalapparatus.com

staveoffboredom.com

evinja.com

onlinebusinesstoolselector.com

todayonly2.info

elitedesign-dz.com

zgszgw.com

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

Formbook Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4008-127-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4008-128-0x000000000041EAC0-mapping.dmp	formbook
behavioral2/memory/4008-130-0x0000000000C30000-0x0000000000D7A000-memory.dmp	formbook
behavioral2/memory/3136-134-0x0000000000FA0000-0x0000000000FCE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

Purchase Order.Pdf.exePurchase Order.Pdf.exeexplorer.exe

description	pid	process	target process
PID 4092 set thread context of 4008	4092	Purchase Order.Pdf.exe	Purchase Order.Pdf.exe
PID 4008 set thread context of 1700	4008	Purchase Order.Pdf.exe	Explorer.EXE
PID 3136 set thread context of 1700	3136	explorer.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
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

Processes:

schtasks.exe

pid process

1820 schtasks.exe

pid	process
1820	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

Purchase Order.Pdf.exePurchase Order.Pdf.exeexplorer.exe

pid	process
4092	Purchase Order.Pdf.exe
4008	Purchase Order.Pdf.exe
4008	Purchase Order.Pdf.exe
4008	Purchase Order.Pdf.exe
4008	Purchase Order.Pdf.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe
3136	explorer.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Purchase Order.Pdf.exeexplorer.exe

pid process

4008 Purchase Order.Pdf.exe
4008 Purchase Order.Pdf.exe
4008 Purchase Order.Pdf.exe
3136 explorer.exe
3136 explorer.exe

pid	process
4008	Purchase Order.Pdf.exe
4008	Purchase Order.Pdf.exe
4008	Purchase Order.Pdf.exe
3136	explorer.exe
3136	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Purchase Order.Pdf.exePurchase Order.Pdf.exeexplorer.exe

description	pid	process
Token: SeDebugPrivilege	4092	Purchase Order.Pdf.exe
Token: SeDebugPrivilege	4008	Purchase Order.Pdf.exe
Token: SeDebugPrivilege	3136	explorer.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Purchase Order.Pdf.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 4092 wrote to memory of 1820	4092	Purchase Order.Pdf.exe	schtasks.exe
PID 4092 wrote to memory of 1820	4092	Purchase Order.Pdf.exe	schtasks.exe
PID 4092 wrote to memory of 1820	4092	Purchase Order.Pdf.exe	schtasks.exe
PID 4092 wrote to memory of 4008	4092	Purchase Order.Pdf.exe	Purchase Order.Pdf.exe
PID 4092 wrote to memory of 4008	4092	Purchase Order.Pdf.exe	Purchase Order.Pdf.exe
PID 4092 wrote to memory of 4008	4092	Purchase Order.Pdf.exe	Purchase Order.Pdf.exe
PID 4092 wrote to memory of 4008	4092	Purchase Order.Pdf.exe	Purchase Order.Pdf.exe
PID 4092 wrote to memory of 4008	4092	Purchase Order.Pdf.exe	Purchase Order.Pdf.exe
PID 4092 wrote to memory of 4008	4092	Purchase Order.Pdf.exe	Purchase Order.Pdf.exe
PID 1700 wrote to memory of 3136	1700	Explorer.EXE	explorer.exe
PID 1700 wrote to memory of 3136	1700	Explorer.EXE	explorer.exe
PID 1700 wrote to memory of 3136	1700	Explorer.EXE	explorer.exe
PID 3136 wrote to memory of 3264	3136	explorer.exe	cmd.exe
PID 3136 wrote to memory of 3264	3136	explorer.exe	cmd.exe
PID 3136 wrote to memory of 3264	3136	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\Purchase Order.Pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase Order.Pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4092
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BqSIOnJAkv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD1E7.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1820
- - C:\Users\Admin\AppData\Local\Temp\Purchase Order.Pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.Pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4008
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3136
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Purchase Order.Pdf.exe"
    3⤵
    PID:3264

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\tmpD1E7.tmp

MD5
1f11a02ce351d36a23aa3d7fed5a0eb2

SHA1
428efb809dce2cbf0a00ae92ddf2f2cfcd5e87fa

SHA256
83ab53a8dcee5ae691e1ad117426d05a51b7cef56bc579262b208ddbcbf3c01e

SHA512
ed96a81cc0daedf67c39d244fa71418761bb51eff9d7fc9cd08d4a7f3833b9d02b943c25c838bb1fd81eee6c87e9eaad2eb78ef0b43dae0f6cc20378593cad16

Download Submit
memory/1700-138-0x0000000002D90000-0x0000000002E35000-memory.dmp

Filesize
660KB

Download
memory/1700-131-0x0000000005410000-0x000000000556E000-memory.dmp

Filesize
1.4MB

Download
memory/1820-125-0x0000000000000000-mapping.dmp

Download
memory/3136-137-0x0000000005860000-0x00000000058F3000-memory.dmp

Filesize
588KB

Download
memory/3136-136-0x0000000005540000-0x0000000005860000-memory.dmp

Filesize
3.1MB

Download
memory/3136-133-0x00000000012B0000-0x00000000016EF000-memory.dmp

Filesize
4.2MB

Download
memory/3136-134-0x0000000000FA0000-0x0000000000FCE000-memory.dmp

Filesize
184KB

Download
memory/3136-132-0x0000000000000000-mapping.dmp

Download
memory/3264-135-0x0000000000000000-mapping.dmp

Download
memory/4008-127-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4008-130-0x0000000000C30000-0x0000000000D7A000-memory.dmp

Filesize
1.3MB

Download
memory/4008-129-0x0000000001120000-0x0000000001440000-memory.dmp

Filesize
3.1MB

Download
memory/4008-128-0x000000000041EAC0-mapping.dmp

Download
memory/4092-122-0x0000000000F60000-0x0000000000F8D000-memory.dmp

Filesize
180KB

Download
memory/4092-114-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download
memory/4092-123-0x0000000007C30000-0x0000000007CA8000-memory.dmp

Filesize
480KB

Download
memory/4092-124-0x0000000007CD0000-0x0000000007D03000-memory.dmp

Filesize
204KB

Download
memory/4092-121-0x0000000005100000-0x00000000055FE000-memory.dmp

Filesize
5.0MB

Download
memory/4092-120-0x0000000005290000-0x0000000005291000-memory.dmp

Filesize
4KB

Download
memory/4092-119-0x0000000004F90000-0x0000000004F91000-memory.dmp

Filesize
4KB

Download
memory/4092-118-0x0000000005100000-0x0000000005101000-memory.dmp

Filesize
4KB

Download
memory/4092-117-0x0000000005600000-0x0000000005601000-memory.dmp

Filesize
4KB

Download
memory/4092-116-0x0000000005060000-0x0000000005061000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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