formbook | c6421f2bcb19c1cd7335da01955f250ecce892b56bba50128602d6a3691fd4bc

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 discovery 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
Formbook family
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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	Payment_Advice.pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4788 set thread context of 2192	4788	Payment_Advice.pdf.exe	99
PID 2192 set thread context of 3496	2192	Payment_Advice.pdf.exe	56
PID 3816 set thread context of 3496	3816	control.exe	56

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Payment_Advice.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	control.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	control.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
2192	Payment_Advice.pdf.exe
2192	Payment_Advice.pdf.exe
2192	Payment_Advice.pdf.exe
2192	Payment_Advice.pdf.exe
2192	Payment_Advice.pdf.exe
2192	Payment_Advice.pdf.exe
2192	Payment_Advice.pdf.exe
2192	Payment_Advice.pdf.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2192	Payment_Advice.pdf.exe
2192	Payment_Advice.pdf.exe
2192	Payment_Advice.pdf.exe
3816	control.exe
3816	control.exe
3816	control.exe
3816	control.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2192	Payment_Advice.pdf.exe
Token: SeDebugPrivilege	3816	control.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4788 wrote to memory of 2192	4788	Payment_Advice.pdf.exe	99
PID 4788 wrote to memory of 2192	4788	Payment_Advice.pdf.exe	99
PID 4788 wrote to memory of 2192	4788	Payment_Advice.pdf.exe	99
PID 4788 wrote to memory of 2192	4788	Payment_Advice.pdf.exe	99
PID 4788 wrote to memory of 2192	4788	Payment_Advice.pdf.exe	99
PID 4788 wrote to memory of 2192	4788	Payment_Advice.pdf.exe	99
PID 3496 wrote to memory of 3816	3496	Explorer.EXE	107
PID 3496 wrote to memory of 3816	3496	Explorer.EXE	107
PID 3496 wrote to memory of 3816	3496	Explorer.EXE	107
PID 3816 wrote to memory of 2376	3816	control.exe	109
PID 3816 wrote to memory of 2376	3816	control.exe	109
PID 3816 wrote to memory of 2376	3816	control.exe	109

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3496
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4788
- - 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:2192
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:5016
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4776
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3580
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:5048
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2224
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3724
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2100
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\SysWOW64\control.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3816
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2192-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2192-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2192-20-0x0000000001920000-0x0000000001C6A000-memory.dmp

Filesize
3.3MB

Download
memory/2192-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2192-23-0x0000000001430000-0x0000000001440000-memory.dmp

Filesize
64KB

Download
memory/3496-32-0x0000000008AD0000-0x0000000008C1A000-memory.dmp

Filesize
1.3MB

Download
memory/3496-24-0x00000000032F0000-0x00000000033F9000-memory.dmp

Filesize
1.0MB

Download
memory/3496-28-0x00000000032F0000-0x00000000033F9000-memory.dmp

Filesize
1.0MB

Download
memory/3496-33-0x0000000008AD0000-0x0000000008C1A000-memory.dmp

Filesize
1.3MB

Download
memory/3496-35-0x0000000008AD0000-0x0000000008C1A000-memory.dmp

Filesize
1.3MB

Download
memory/3816-25-0x0000000000C20000-0x0000000000C47000-memory.dmp

Filesize
156KB

Download
memory/3816-26-0x0000000000C20000-0x0000000000C47000-memory.dmp

Filesize
156KB

Download
memory/3816-27-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4788-7-0x0000000006020000-0x0000000006034000-memory.dmp

Filesize
80KB

Download
memory/4788-9-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/4788-13-0x0000000007D00000-0x0000000007D66000-memory.dmp

Filesize
408KB

Download
memory/4788-12-0x0000000007C60000-0x0000000007CFC000-memory.dmp

Filesize
624KB

Download
memory/4788-19-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/4788-11-0x0000000007B30000-0x0000000007BBE000-memory.dmp

Filesize
568KB

Download
memory/4788-10-0x0000000005F80000-0x0000000005F8C000-memory.dmp

Filesize
48KB

Download
memory/4788-14-0x0000000007BC0000-0x0000000007BF4000-memory.dmp

Filesize
208KB

Download
memory/4788-8-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

Filesize
4KB

Download
memory/4788-0-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

Filesize
4KB

Download
memory/4788-6-0x00000000052C0000-0x00000000052D4000-memory.dmp

Filesize
80KB

Download
memory/4788-4-0x0000000074F00000-0x00000000756B0000-memory.dmp

Filesize
7.7MB

Download
memory/4788-5-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download
memory/4788-3-0x0000000004D20000-0x0000000004DB2000-memory.dmp

Filesize
584KB

Download
memory/4788-2-0x00000000052D0000-0x0000000005874000-memory.dmp

Filesize
5.6MB

Download
memory/4788-1-0x0000000000370000-0x000000000043A000-memory.dmp

Filesize
808KB

Download

Analysis

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