formbook | cea5d90803c6d7d433e520b7be5e5282020800d7b984514f9675de290644f60d

General

Target

INQUIRY.exe
Size

689KB
MD5

f12960960ffcf4c9765daac91377f126
SHA1

42dd3f85af33aaed082b9cfc53aae76fdc39e418
SHA256

c52f08e31d55081182366aa8a2a1dde48d8e78f7cdd079fda0d64350dd7162b2
SHA512

36eede9c13894860363fe81496613529696df757f01d38eb133122cf1026d2901784ad9c2aeffd034136d60067467f9c1c8da0f1c473618cd1e5bda3b23acc42
SSDEEP

12288:kBX/UcCRbiJIAhoA9MxoBQVl0gRHDx5GYGB6K4s5ZW+tWpAHmuG3GkAr9RrQ2/:kNY4IAereEl0gRHDxcYio2WcYuGgr

Score

10^/10

formbook aw63 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

aw63

Decoy

moothwolf.zone

remier-rgv.net

lwfff.fun

ater-leak-4321.click

osyalguzelanadolum.online

ifqyqhc.xyz

fos.center

cciqrdi.xyz

all-center-78598.bond

jcgpmif.xyz

ionttogell.net

58kpwm906r.shop

ook-therapy.net

emenbergcsp.net

ortexioner.digital

ztidqn.info

hazhai.lol

rofood.biz

unzhuo.cfd

r-outsourcing-64055.bond

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2568-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2568-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2620-21-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2768	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2524 set thread context of 2568	2524	INQUIRY.exe	31
PID 2568 set thread context of 1192	2568	INQUIRY.exe	21
PID 2620 set thread context of 1192	2620	NAPSTAT.EXE	21

System Location Discovery: System Language Discovery 1 TTPs 3 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	INQUIRY.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NAPSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2568	INQUIRY.exe
2568	INQUIRY.exe
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2568	INQUIRY.exe
2568	INQUIRY.exe
2568	INQUIRY.exe
2620	NAPSTAT.EXE
2620	NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2568	INQUIRY.exe
Token: SeDebugPrivilege	2620	NAPSTAT.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2568	2524	INQUIRY.exe	31
PID 2524 wrote to memory of 2568	2524	INQUIRY.exe	31
PID 2524 wrote to memory of 2568	2524	INQUIRY.exe	31
PID 2524 wrote to memory of 2568	2524	INQUIRY.exe	31
PID 2524 wrote to memory of 2568	2524	INQUIRY.exe	31
PID 2524 wrote to memory of 2568	2524	INQUIRY.exe	31
PID 2524 wrote to memory of 2568	2524	INQUIRY.exe	31
PID 1192 wrote to memory of 2620	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2620	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2620	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2620	1192	Explorer.EXE	32
PID 2620 wrote to memory of 2768	2620	NAPSTAT.EXE	33
PID 2620 wrote to memory of 2768	2620	NAPSTAT.EXE	33
PID 2620 wrote to memory of 2768	2620	NAPSTAT.EXE	33
PID 2620 wrote to memory of 2768	2620	NAPSTAT.EXE	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe
  "C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2524
- - C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe
    "C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2568
- C:\Windows\SysWOW64\NAPSTAT.EXE
  "C:\Windows\SysWOW64\NAPSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2620
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1192-22-0x00000000043A0000-0x000000000445A000-memory.dmp

Filesize
744KB

Download
memory/1192-18-0x00000000043A0000-0x000000000445A000-memory.dmp

Filesize
744KB

Download
memory/2524-13-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2524-1-0x0000000000B10000-0x0000000000BC2000-memory.dmp

Filesize
712KB

Download
memory/2524-2-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2524-3-0x0000000004260000-0x0000000004304000-memory.dmp

Filesize
656KB

Download
memory/2524-4-0x00000000002B0000-0x00000000002CE000-memory.dmp

Filesize
120KB

Download
memory/2524-5-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2524-6-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2524-7-0x00000000004E0000-0x000000000055A000-memory.dmp

Filesize
488KB

Download
memory/2524-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2568-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2568-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2568-14-0x0000000000BD0000-0x0000000000ED3000-memory.dmp

Filesize
3.0MB

Download
memory/2568-17-0x0000000000280000-0x0000000000295000-memory.dmp

Filesize
84KB

Download
memory/2568-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2568-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2568-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2620-20-0x0000000000A00000-0x0000000000A46000-memory.dmp

Filesize
280KB

Download
memory/2620-19-0x0000000000A00000-0x0000000000A46000-memory.dmp

Filesize
280KB

Download
memory/2620-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

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