formbook | 6f74e80cc1e0428e9c04ade080df738cd9206a4ef51e55737af9c5b5d62ca7f4

General

Target

Payment_Advice.pdf.exe
Size

780KB
MD5

86855fd89cf9d73b25db56cfddcb26bb
SHA1

c176adca26aefc687a5a89108b0276e0f8dfd22c
SHA256

6f74e80cc1e0428e9c04ade080df738cd9206a4ef51e55737af9c5b5d62ca7f4
SHA512

8b378e20dd307bc345ac2f800c62e9c2ac3235f782ef2fd5d8fe9b550ef82dc76182d6cb25bb592d918161da9bc5bbfd220c256848c993dcc2634721b6a12ce7
SSDEEP

12288:wA52iNUDjyTOhNWcAsmP55Fgf/JUni6a7n/W+ZHkOYLD:j1CfOsmP55mJOFa7//ZE5L

Score

10^/10

formbook nquy rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

nquy

Decoy

a3sidprVANFTG0llIjdA

amYQhcIbS9blLB0=

GOqH7AZQZTYBOB8vWeHGwCVnUw==

kp1yw+EwVCesxslPY5gtZ2aiBcRa

zV/0O1+y47mCh6+5

uX0OU3R898WRBa/Rog==

6val8whPkGM9wuxTFGNI

ozzlSYzyF/XOgNSKG5fsoNYzkk+pxgDF

sHo2h6PuHfFwtOdTFGNI

xZ54yOceUB/thMxtzhp4wCVnUw==

s4pIou5HdD3C1snrARcqXw==

jiOqEVW81qEjTIs5ouY+1hZ3MGvCJg==

Nga3BkamwZ4gVmz0fb5KkYs=

DNeA3Bp8vJpd8VPogb5KkYs=

tbZjsdPoeu0sRcPUqA==

RToES3S3EqV3+g2XLLtFzOHPMXwE7JvN

+c+C3eYzcETJ8hehDlIno5I=

3KE0kK71Hf/ODgNTFGNI

MPrCqTAJbjGx

fkXl/0uKuIgIDPB+aeTYSA==

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	Payment_Advice.pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4588 set thread context of 5048	4588	Payment_Advice.pdf.exe	90
PID 5048 set thread context of 3092	5048	Payment_Advice.pdf.exe	43
PID 4348 set thread context of 3092	4348	msiexec.exe	43

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
5048	Payment_Advice.pdf.exe
5048	Payment_Advice.pdf.exe
5048	Payment_Advice.pdf.exe
5048	Payment_Advice.pdf.exe
5048	Payment_Advice.pdf.exe
5048	Payment_Advice.pdf.exe
5048	Payment_Advice.pdf.exe
5048	Payment_Advice.pdf.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3092	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
5048	Payment_Advice.pdf.exe
5048	Payment_Advice.pdf.exe
5048	Payment_Advice.pdf.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe
4348	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5048	Payment_Advice.pdf.exe
Token: SeDebugPrivilege	4348	msiexec.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 5048	4588	Payment_Advice.pdf.exe	90
PID 4588 wrote to memory of 5048	4588	Payment_Advice.pdf.exe	90
PID 4588 wrote to memory of 5048	4588	Payment_Advice.pdf.exe	90
PID 4588 wrote to memory of 5048	4588	Payment_Advice.pdf.exe	90
PID 4588 wrote to memory of 5048	4588	Payment_Advice.pdf.exe	90
PID 4588 wrote to memory of 5048	4588	Payment_Advice.pdf.exe	90
PID 3092 wrote to memory of 4348	3092	Explorer.EXE	91
PID 3092 wrote to memory of 4348	3092	Explorer.EXE	91
PID 3092 wrote to memory of 4348	3092	Explorer.EXE	91
PID 4348 wrote to memory of 5024	4348	msiexec.exe	92
PID 4348 wrote to memory of 5024	4348	msiexec.exe	92
PID 4348 wrote to memory of 5024	4348	msiexec.exe	92

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Users\Admin\AppData\Local\Temp\Payment_Advice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment_Advice.pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4588
- - C:\Users\Admin\AppData\Local\Temp\Payment_Advice.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment_Advice.pdf.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:5048
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4348
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:5024

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3092-146-0x0000000008620000-0x0000000008786000-memory.dmp

Filesize
1.4MB

Download
memory/3092-154-0x0000000007CD0000-0x0000000007D85000-memory.dmp

Filesize
724KB

Download
memory/3092-152-0x0000000007CD0000-0x0000000007D85000-memory.dmp

Filesize
724KB

Download
memory/4348-153-0x0000000000650000-0x000000000067D000-memory.dmp

Filesize
180KB

Download
memory/4348-151-0x0000000002450000-0x00000000024DF000-memory.dmp

Filesize
572KB

Download
memory/4348-150-0x0000000002520000-0x000000000286A000-memory.dmp

Filesize
3.3MB

Download
memory/4348-149-0x0000000000650000-0x000000000067D000-memory.dmp

Filesize
180KB

Download
memory/4348-148-0x0000000000D90000-0x0000000000DA2000-memory.dmp

Filesize
72KB

Download
memory/4588-137-0x00000000097D0000-0x0000000009836000-memory.dmp

Filesize
408KB

Download
memory/4588-132-0x0000000000E50000-0x0000000000F1A000-memory.dmp

Filesize
808KB

Download
memory/4588-136-0x0000000009730000-0x00000000097CC000-memory.dmp

Filesize
624KB

Download
memory/4588-135-0x00000000058C0000-0x00000000058CA000-memory.dmp

Filesize
40KB

Download
memory/4588-134-0x0000000005920000-0x00000000059B2000-memory.dmp

Filesize
584KB

Download
memory/4588-133-0x0000000005ED0000-0x0000000006474000-memory.dmp

Filesize
5.6MB

Download
memory/5048-143-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/5048-144-0x00000000014F0000-0x000000000183A000-memory.dmp

Filesize
3.3MB

Download
memory/5048-145-0x0000000001000000-0x0000000001010000-memory.dmp

Filesize
64KB

Download
memory/5048-142-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5048-141-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5048-139-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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