formbook | 36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf

Analysis

max time kernel
93s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 19:09

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General

Target

36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe
Size

743KB
MD5

df300e93be84410e629996a8050e47b2
SHA1

1ace59620fa5e6b7717a04ad28620e6a61191c80
SHA256

36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf
SHA512

435302f901c1068288bf80e5726f3f9d0cbb4bfc6a3b489c7e3260698aa0b3e1707a203d3998b99ea183a21f3a1736eaa422fee358d88eb795647d665fa7b705
SSDEEP

12288:w38f2uE1zDf5n7Dm1C8T7bl9JrUKrlR+v+Yyf39fiQyHWsUuAPM5Uf8f2:w3u2uO3B4Ck59ReyfN5kWtuAa4u2

Score

10^/10

formbook k49s discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

k49s

Decoy

ufberyrubiest.shop

tpanekatotosite.top

esona805158762.xyz

earing-tests-15487.bond

rediksitiraitoto.xyz

tore-playstore.online

mpresarialpx38.online

ufxusa.net

reativedesigns.lat

leaning-services-47614.bond

959725nptklnq923.top

treziop.xyz

eubel-bestseller.online

uynewcars.xyz

all-panels-74750.bond

erviceninjas.vip

arectoroffice.xyz

oviesgpt.app

ractors-22059.bond

rakenfitness.info

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/1888-9-0x0000000000400000-0x000000000042F000-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
4732	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2928 set thread context of 1888	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	99

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	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1888	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe
1888	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe
4732	powershell.exe
4732	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4732	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2928 wrote to memory of 4732	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	97
PID 2928 wrote to memory of 4732	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	97
PID 2928 wrote to memory of 4732	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	97
PID 2928 wrote to memory of 1888	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	99
PID 2928 wrote to memory of 1888	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	99
PID 2928 wrote to memory of 1888	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	99
PID 2928 wrote to memory of 1888	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	99
PID 2928 wrote to memory of 1888	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	99
PID 2928 wrote to memory of 1888	2928	36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe	99

C:\Users\Admin\AppData\Local\Temp\36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe
"C:\Users\Admin\AppData\Local\Temp\36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2928
- 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\36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4732
- C:\Users\Admin\AppData\Local\Temp\36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe
  "C:\Users\Admin\AppData\Local\Temp\36ac663aee997b4b8da3bd498abcbdb91ca180f7afe402ce8ab166099c098cbf_Sigmanly.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1888

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_ah4two2j.tbm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1888-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1888-11-0x00007FF83CE70000-0x00007FF83D065000-memory.dmp

Filesize
2.0MB

Download
memory/2928-1-0x0000000000C30000-0x0000000000CF0000-memory.dmp

Filesize
768KB

Download
memory/2928-3-0x0000000005710000-0x00000000057A2000-memory.dmp

Filesize
584KB

Download
memory/2928-2-0x0000000005C20000-0x00000000061C4000-memory.dmp

Filesize
5.6MB

Download
memory/2928-5-0x00000000056E0000-0x00000000056EA000-memory.dmp

Filesize
40KB

Download
memory/2928-6-0x00000000059B0000-0x0000000005A4C000-memory.dmp

Filesize
624KB

Download
memory/2928-7-0x0000000005B50000-0x0000000005B76000-memory.dmp

Filesize
152KB

Download
memory/2928-8-0x00000000050F0000-0x000000000516A000-memory.dmp

Filesize
488KB

Download
memory/2928-0-0x00007FF83CE70000-0x00007FF83D065000-memory.dmp

Filesize
2.0MB

Download
memory/2928-12-0x00007FF83CE70000-0x00007FF83D065000-memory.dmp

Filesize
2.0MB

Download
memory/2928-4-0x00007FF83CE70000-0x00007FF83D065000-memory.dmp

Filesize
2.0MB

Download
memory/4732-54-0x0000000007800000-0x0000000007808000-memory.dmp

Filesize
32KB

Download
memory/4732-44-0x0000000006760000-0x000000000677E000-memory.dmp

Filesize
120KB

Download
memory/4732-16-0x0000000005280000-0x00000000058A8000-memory.dmp

Filesize
6.2MB

Download
memory/4732-17-0x0000000005A20000-0x0000000005A42000-memory.dmp

Filesize
136KB

Download
memory/4732-23-0x0000000005AC0000-0x0000000005B26000-memory.dmp

Filesize
408KB

Download
memory/4732-13-0x0000000004C10000-0x0000000004C46000-memory.dmp

Filesize
216KB

Download
memory/4732-14-0x00007FF83CE70000-0x00007FF83D065000-memory.dmp

Filesize
2.0MB

Download
memory/4732-24-0x0000000005BA0000-0x0000000005C06000-memory.dmp

Filesize
408KB

Download
memory/4732-31-0x0000000006200000-0x000000000624C000-memory.dmp

Filesize
304KB

Download
memory/4732-30-0x00000000061A0000-0x00000000061BE000-memory.dmp

Filesize
120KB

Download
memory/4732-33-0x00007FF83CE70000-0x00007FF83D065000-memory.dmp

Filesize
2.0MB

Download
memory/4732-32-0x0000000006780000-0x00000000067B2000-memory.dmp

Filesize
200KB

Download
memory/4732-34-0x0000000070C60000-0x0000000070CAC000-memory.dmp

Filesize
304KB

Download
memory/4732-15-0x00007FF83CE70000-0x00007FF83D065000-memory.dmp

Filesize
2.0MB

Download
memory/4732-45-0x0000000007390000-0x0000000007433000-memory.dmp

Filesize
652KB

Download
memory/4732-46-0x0000000007B20000-0x000000000819A000-memory.dmp

Filesize
6.5MB

Download
memory/4732-47-0x00000000074E0000-0x00000000074FA000-memory.dmp

Filesize
104KB

Download
memory/4732-48-0x0000000007550000-0x000000000755A000-memory.dmp

Filesize
40KB

Download
memory/4732-49-0x0000000007760000-0x00000000077F6000-memory.dmp

Filesize
600KB

Download
memory/4732-50-0x00000000076E0000-0x00000000076F1000-memory.dmp

Filesize
68KB

Download
memory/4732-51-0x0000000007710000-0x000000000771E000-memory.dmp

Filesize
56KB

Download
memory/4732-52-0x0000000007720000-0x0000000007734000-memory.dmp

Filesize
80KB

Download
memory/4732-53-0x0000000007820000-0x000000000783A000-memory.dmp

Filesize
104KB

Download
memory/4732-29-0x0000000005D10000-0x0000000006064000-memory.dmp

Filesize
3.3MB

Download
memory/4732-57-0x00007FF83CE70000-0x00007FF83D065000-memory.dmp

Filesize
2.0MB

Download