formbook | aa09af471e4d8304972bb9dfffda6a3de155a5b9294f029b68e60b55540a6cff

General

Target

PO.exe
Size

550KB
MD5

8a5940fa28ca1b3b684ca60d704fef82
SHA1

dd71435f24a40087de7c69d636891bda2a426459
SHA256

5f688c2a0311c1627e8adc2ed5bdf82dd9bef167cf6bb90de7cbc53c2e3c4052
SHA512

5e52ba0e4ddfde851d598ff60d16f10396c68ee603200eed9580f3b54d3ef553f9c695f09ec917e0bec35deb832fdc66d6abc8a1bbb4536adad695f2c7f6d730
SSDEEP

12288:Dth6kROZz/jHEG4eD2h0LKfyuqzYdaECH/OmApVQ:Bh6VzbSeioUyuAYgfRAs

Score

10^/10

formbook tw7 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

tw7

Decoy

prestige-reps.com

nhakhoaquoctesmile.com

sicumplex.com

in36972.com

hikoosbyheidi.com

rayinthecity.com

mjwestwoodphotography.com

radiopeek.com

attisit.com

hdcpos.com

xn--halise-1ua.com

bossroyale.com

blstd.com

wniversitet.com

bethumb.pro

romber.info

bergundy.com

kingscoop.com

antiquefactory.net

loiseaudejade.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/2692-12-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2692-16-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2692-21-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2584	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2308 set thread context of 2692	2308	PO.exe	31
PID 2692 set thread context of 1192	2692	PO.exe	21
PID 2692 set thread context of 1192	2692	PO.exe	21
PID 2488 set thread context of 1192	2488	help.exe	21

System Location Discovery: System Language Discovery 1 TTPs 4 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	PO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PO.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2692	PO.exe
2692	PO.exe
2692	PO.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe
2488	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2692	PO.exe
2692	PO.exe
2692	PO.exe
2692	PO.exe
2488	help.exe
2488	help.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	PO.exe
Token: SeDebugPrivilege	2488	help.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 2692	2308	PO.exe	31
PID 2308 wrote to memory of 2692	2308	PO.exe	31
PID 2308 wrote to memory of 2692	2308	PO.exe	31
PID 2308 wrote to memory of 2692	2308	PO.exe	31
PID 2308 wrote to memory of 2692	2308	PO.exe	31
PID 2308 wrote to memory of 2692	2308	PO.exe	31
PID 2308 wrote to memory of 2692	2308	PO.exe	31
PID 2692 wrote to memory of 2488	2692	PO.exe	32
PID 2692 wrote to memory of 2488	2692	PO.exe	32
PID 2692 wrote to memory of 2488	2692	PO.exe	32
PID 2692 wrote to memory of 2488	2692	PO.exe	32
PID 2488 wrote to memory of 2584	2488	help.exe	33
PID 2488 wrote to memory of 2584	2488	help.exe	33
PID 2488 wrote to memory of 2584	2488	help.exe	33
PID 2488 wrote to memory of 2584	2488	help.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192
- C:\Users\Admin\AppData\Local\Temp\PO.exe
  "C:\Users\Admin\AppData\Local\Temp\PO.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2308
- - C:\Users\Admin\AppData\Local\Temp\PO.exe
    "C:\Users\Admin\AppData\Local\Temp\PO.exe"
    3⤵
    - 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:2692
  - - C:\Windows\SysWOW64\help.exe
      "C:\Windows\SysWOW64\help.exe"
      4⤵
      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:2488
    - - C:\Windows\SysWOW64\cmd.exe
        
        /c del "C:\Users\Admin\AppData\Local\Temp\PO.exe"
        5⤵
        Deletes itself
        System Location Discovery: System Language Discovery
        
        PID:2584

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/1192-18-0x0000000003A60000-0x0000000003B60000-memory.dmp

Filesize
1024KB

Download
memory/1192-27-0x0000000004B00000-0x0000000004BBE000-memory.dmp

Filesize
760KB

Download
memory/1192-24-0x0000000004B00000-0x0000000004BBE000-memory.dmp

Filesize
760KB

Download
memory/1192-23-0x0000000006C20000-0x0000000006D7D000-memory.dmp

Filesize
1.4MB

Download
memory/1192-19-0x0000000006C20000-0x0000000006D7D000-memory.dmp

Filesize
1.4MB

Download
memory/2308-6-0x0000000004960000-0x00000000049CC000-memory.dmp

Filesize
432KB

Download
memory/2308-5-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-7-0x0000000002190000-0x00000000021C4000-memory.dmp

Filesize
208KB

Download
memory/2308-1-0x0000000000850000-0x00000000008E0000-memory.dmp

Filesize
576KB

Download
memory/2308-0-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/2308-13-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-2-0x0000000074610000-0x0000000074CFE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-3-0x0000000000360000-0x0000000000370000-memory.dmp

Filesize
64KB

Download
memory/2308-4-0x000000007461E000-0x000000007461F000-memory.dmp

Filesize
4KB

Download
memory/2488-25-0x0000000000AE0000-0x0000000000AE6000-memory.dmp

Filesize
24KB

Download
memory/2488-26-0x0000000000AE0000-0x0000000000AE6000-memory.dmp

Filesize
24KB

Download
memory/2692-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2692-17-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/2692-22-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/2692-21-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2692-14-0x0000000000A70000-0x0000000000D73000-memory.dmp

Filesize
3.0MB

Download
memory/2692-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2692-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2692-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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