formbook | 33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab

Analysis

max time kernel
102s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-08-2024 03:21

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General

Target

8431df429e82a311e33fe085f3b419c0N.exe
Size

633KB
MD5

8431df429e82a311e33fe085f3b419c0
SHA1

0358de41f691dc3ead6aeeadb0313f867a497167
SHA256

33779a75da1af9c5f45112370d3dbd803e86fc7b88bc5a1f43a7b76fc9d887ab
SHA512

e8bc2de8a2e62a62dc6b7e5501cbb8eb36722a231542f6b4c631312b39c7c87c8f279291cf9988410dd2e89a746628960c55bef7f529a924422b6863ab048c52
SSDEEP

12288:2zPAiSeURm5gpmNU4EGET0aisK0HeSrEXSI+nhtVj4wJxNJJXlCALkR:2zPAOUegga4BkhNrHeSrUSIktVjVJv7c

Score

10^/10

formbook sy52 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sy52

Decoy

wxxj.asia

emu-oil.online

theprogressiontalks.com

saigonvape.com

cb257.pro

inucana.com

xn--pdr89n.vip

vtc.bzh

connexionsink.com

mastersofthevibes.com

mallsetuae.shop

bellaandbling.com

wagi88.one

273618.bid

japanvietnam-mall.com

lkd1t.rest

oflgjgiq.xyz

calliblography.com

idz8u.vip

marrybears.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/4380-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2900	powershell.exe

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	8431df429e82a311e33fe085f3b419c0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1836 set thread context of 4380	1836	8431df429e82a311e33fe085f3b419c0N.exe	96

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	8431df429e82a311e33fe085f3b419c0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1836	8431df429e82a311e33fe085f3b419c0N.exe
1836	8431df429e82a311e33fe085f3b419c0N.exe
1836	8431df429e82a311e33fe085f3b419c0N.exe
4380	8431df429e82a311e33fe085f3b419c0N.exe
4380	8431df429e82a311e33fe085f3b419c0N.exe
2900	powershell.exe
2900	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1836	8431df429e82a311e33fe085f3b419c0N.exe
Token: SeDebugPrivilege	2900	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 2900	1836	8431df429e82a311e33fe085f3b419c0N.exe	94
PID 1836 wrote to memory of 2900	1836	8431df429e82a311e33fe085f3b419c0N.exe	94
PID 1836 wrote to memory of 2900	1836	8431df429e82a311e33fe085f3b419c0N.exe	94
PID 1836 wrote to memory of 4380	1836	8431df429e82a311e33fe085f3b419c0N.exe	96
PID 1836 wrote to memory of 4380	1836	8431df429e82a311e33fe085f3b419c0N.exe	96
PID 1836 wrote to memory of 4380	1836	8431df429e82a311e33fe085f3b419c0N.exe	96
PID 1836 wrote to memory of 4380	1836	8431df429e82a311e33fe085f3b419c0N.exe	96
PID 1836 wrote to memory of 4380	1836	8431df429e82a311e33fe085f3b419c0N.exe	96
PID 1836 wrote to memory of 4380	1836	8431df429e82a311e33fe085f3b419c0N.exe	96

C:\Users\Admin\AppData\Local\Temp\8431df429e82a311e33fe085f3b419c0N.exe
"C:\Users\Admin\AppData\Local\Temp\8431df429e82a311e33fe085f3b419c0N.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1836
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8431df429e82a311e33fe085f3b419c0N.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2900
- C:\Users\Admin\AppData\Local\Temp\8431df429e82a311e33fe085f3b419c0N.exe
  "C:\Users\Admin\AppData\Local\Temp\8431df429e82a311e33fe085f3b419c0N.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4380

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hb4r1mk2.cz4.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1836-6-0x0000000005B80000-0x0000000005B9A000-memory.dmp

Filesize
104KB

Download
memory/1836-2-0x0000000005E40000-0x00000000063E4000-memory.dmp

Filesize
5.6MB

Download
memory/1836-3-0x0000000005890000-0x0000000005922000-memory.dmp

Filesize
584KB

Download
memory/1836-4-0x0000000005A30000-0x0000000005A3A000-memory.dmp

Filesize
40KB

Download
memory/1836-5-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/1836-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/1836-7-0x0000000005BC0000-0x0000000005BCE000-memory.dmp

Filesize
56KB

Download
memory/1836-8-0x0000000005BD0000-0x0000000005BE6000-memory.dmp

Filesize
88KB

Download
memory/1836-9-0x0000000009380000-0x00000000093F6000-memory.dmp

Filesize
472KB

Download
memory/1836-10-0x000000000C4A0000-0x000000000C53C000-memory.dmp

Filesize
624KB

Download
memory/1836-1-0x0000000000DF0000-0x0000000000E90000-memory.dmp

Filesize
640KB

Download
memory/1836-13-0x00000000748C0000-0x0000000075070000-memory.dmp

Filesize
7.7MB

Download
memory/2900-21-0x00000000051B0000-0x0000000005216000-memory.dmp

Filesize
408KB

Download
memory/2900-53-0x0000000007600000-0x0000000007696000-memory.dmp

Filesize
600KB

Download
memory/2900-61-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2900-14-0x0000000002720000-0x0000000002756000-memory.dmp

Filesize
216KB

Download
memory/2900-18-0x0000000005300000-0x0000000005928000-memory.dmp

Filesize
6.2MB

Download
memory/2900-19-0x00000000050A0000-0x00000000050C2000-memory.dmp

Filesize
136KB

Download
memory/2900-20-0x0000000005140000-0x00000000051A6000-memory.dmp

Filesize
408KB

Download
memory/2900-16-0x000000007496E000-0x000000007496F000-memory.dmp

Filesize
4KB

Download
memory/2900-58-0x00000000076A0000-0x00000000076A8000-memory.dmp

Filesize
32KB

Download
memory/2900-31-0x0000000005A30000-0x0000000005D84000-memory.dmp

Filesize
3.3MB

Download
memory/2900-32-0x0000000006050000-0x000000000606E000-memory.dmp

Filesize
120KB

Download
memory/2900-33-0x0000000006080000-0x00000000060CC000-memory.dmp

Filesize
304KB

Download
memory/2900-34-0x0000000006630000-0x0000000006662000-memory.dmp

Filesize
200KB

Download
memory/2900-35-0x0000000070780000-0x00000000707CC000-memory.dmp

Filesize
304KB

Download
memory/2900-46-0x0000000006670000-0x000000000668E000-memory.dmp

Filesize
120KB

Download
memory/2900-45-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2900-47-0x0000000007060000-0x0000000007103000-memory.dmp

Filesize
652KB

Download
memory/2900-48-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2900-49-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2900-51-0x0000000007380000-0x000000000739A000-memory.dmp

Filesize
104KB

Download
memory/2900-50-0x00000000079D0000-0x000000000804A000-memory.dmp

Filesize
6.5MB

Download
memory/2900-52-0x00000000073F0000-0x00000000073FA000-memory.dmp

Filesize
40KB

Download
memory/2900-17-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/2900-54-0x0000000007580000-0x0000000007591000-memory.dmp

Filesize
68KB

Download
memory/2900-55-0x00000000075B0000-0x00000000075BE000-memory.dmp

Filesize
56KB

Download
memory/2900-56-0x00000000075C0000-0x00000000075D4000-memory.dmp

Filesize
80KB

Download
memory/2900-57-0x00000000076C0000-0x00000000076DA000-memory.dmp

Filesize
104KB

Download
memory/4380-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4380-15-0x00000000016D0000-0x0000000001A1A000-memory.dmp

Filesize
3.3MB

Download
memory/4380-62-0x00000000016D0000-0x0000000001A1A000-memory.dmp

Filesize
3.3MB

Download