formbook | 86a3d79159668222e08f1b8fcb16b9994188077405d78453744f59bb314fc63d

General

Target

Inquiry.exe
Size

795KB
MD5

a06acb7a0f10d8f75fbab35b01a811f5
SHA1

93cb99d92c754669d063c842618813b8c72b63df
SHA256

7efed15a69ffc8fa8a65db6f3ed48fb3f5c727c0ef9917a352cbc713da4828a3
SHA512

48721464d5cf4ae1d8f14c6a1f4c6127964ace7794de18d84204c63c359d3315d2248cf634a5a2769995333a90a1a85ad8013072e2a8836b20c852e3405e5e76
SSDEEP

24576:FD4VHfQe6ZyWshg+qbZxTZZWunAWvS+ksZHSA/uwkSW+1mb:H5yA/uwdX1W

Score

10^/10

formbook useb discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

useb

Decoy

houseofbooksae.net

ipjfeugo.xyz

sandiegowavefc.store

kamerynemehiel.com

herbalhealthalert.com

nfmedco.com

dorhop.com

bookingscenter.com

blaclyteproductions.com

novatel-network.com

locomotionprogramming.com

dotchocolatebars.com

rohanyat.online

a2detail.com

cotedazurpropertyforsale.com

space-vantage.space

averysanswers.com

lionheartimagery.com

nozincwadi.com

lovemyduck.com

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/2824-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2824-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1392-25-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2792	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1960 set thread context of 2824	1960	Inquiry.exe	32
PID 2824 set thread context of 1216	2824	Inquiry.exe	21
PID 1392 set thread context of 1216	1392	wlanext.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	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
1960	Inquiry.exe
1960	Inquiry.exe
1960	Inquiry.exe
1960	Inquiry.exe
2824	Inquiry.exe
2824	Inquiry.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe
1392	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2824	Inquiry.exe
2824	Inquiry.exe
2824	Inquiry.exe
1392	wlanext.exe
1392	wlanext.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1960	Inquiry.exe
Token: SeDebugPrivilege	2824	Inquiry.exe
Token: SeDebugPrivilege	1392	wlanext.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 2940	1960	Inquiry.exe	31
PID 1960 wrote to memory of 2940	1960	Inquiry.exe	31
PID 1960 wrote to memory of 2940	1960	Inquiry.exe	31
PID 1960 wrote to memory of 2940	1960	Inquiry.exe	31
PID 1960 wrote to memory of 2824	1960	Inquiry.exe	32
PID 1960 wrote to memory of 2824	1960	Inquiry.exe	32
PID 1960 wrote to memory of 2824	1960	Inquiry.exe	32
PID 1960 wrote to memory of 2824	1960	Inquiry.exe	32
PID 1960 wrote to memory of 2824	1960	Inquiry.exe	32
PID 1960 wrote to memory of 2824	1960	Inquiry.exe	32
PID 1960 wrote to memory of 2824	1960	Inquiry.exe	32
PID 1216 wrote to memory of 1392	1216	Explorer.EXE	33
PID 1216 wrote to memory of 1392	1216	Explorer.EXE	33
PID 1216 wrote to memory of 1392	1216	Explorer.EXE	33
PID 1216 wrote to memory of 1392	1216	Explorer.EXE	33
PID 1392 wrote to memory of 2792	1392	wlanext.exe	34
PID 1392 wrote to memory of 2792	1392	wlanext.exe	34
PID 1392 wrote to memory of 2792	1392	wlanext.exe	34
PID 1392 wrote to memory of 2792	1392	wlanext.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- 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 behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Users\Admin\AppData\Local\Temp\Inquiry.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry.exe"
    3⤵
    PID:2940
- - 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:2824
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:1392
- - 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:2792

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/1216-26-0x0000000004C90000-0x0000000004DC1000-memory.dmp

Filesize
1.2MB

Download
memory/1216-21-0x0000000004C90000-0x0000000004DC1000-memory.dmp

Filesize
1.2MB

Download
memory/1392-22-0x0000000000860000-0x0000000000876000-memory.dmp

Filesize
88KB

Download
memory/1392-24-0x0000000000860000-0x0000000000876000-memory.dmp

Filesize
88KB

Download
memory/1392-25-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download
memory/1960-3-0x0000000000350000-0x000000000036A000-memory.dmp

Filesize
104KB

Download
memory/1960-6-0x0000000005A20000-0x0000000005A94000-memory.dmp

Filesize
464KB

Download
memory/1960-7-0x0000000000530000-0x0000000000536000-memory.dmp

Filesize
24KB

Download
memory/1960-8-0x0000000004900000-0x0000000004942000-memory.dmp

Filesize
264KB

Download
memory/1960-5-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1960-0-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1960-4-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/1960-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1960-16-0x0000000073FF0000-0x00000000746DE000-memory.dmp

Filesize
6.9MB

Download
memory/1960-1-0x0000000001080000-0x000000000114C000-memory.dmp

Filesize
816KB

Download
memory/2824-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2824-20-0x0000000000180000-0x0000000000194000-memory.dmp

Filesize
80KB

Download
memory/2824-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2824-17-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/2824-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2824-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2824-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

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