formbook | c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15-12-2024 03:59

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe
Size

715KB
MD5

303c96d28de2023a3358f8a1c4dca692
SHA1

4fb8a0435be969803b11d4775d9026f692c64445
SHA256

c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73
SHA512

178e895c18b1afecfaa4bc10c259bd369485ed5ff03c96d0fdd36eb429e407bf57a0fb1b47268328cb9751982bdea69383b0f5be3af6a7c2738397b96d43b568
SSDEEP

12288:ZC25usx+XtRIO/3YtvYwFA8wL6Ab5buKjGhKyPV0VlzYqrh+GkVc:LxyIFvULLpNyKj6KKVqhYqla

Score

10^/10

formbook bs84 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bs84

Decoy

ehuatang.quest

mart-healthcare.solutions

arehouse-inventory-59593.bond

rumpjokes.net

oonlightshadow.store

odernoob.website

sdmedia.net

0k21l6z.xyz

kwovenart.shop

chvb.bid

06ks28.buzz

grexvc.online

unnycdn02.shop

ettingitgonejunk.net

lubmango.store

ustjump.xyz

ofiveuss.store

aahasti-inter5.rest

etclcg.business

ai365.xyz

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/4872-21-0x0000000000400000-0x000000000042F000-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
1932	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2440 set thread context of 4872	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	93

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 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	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1932	powershell.exe
4872	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe
4872	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe
1932	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1932	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 1932	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	89
PID 2440 wrote to memory of 1932	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	89
PID 2440 wrote to memory of 1932	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	89
PID 2440 wrote to memory of 4700	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	91
PID 2440 wrote to memory of 4700	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	91
PID 2440 wrote to memory of 4700	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	91
PID 2440 wrote to memory of 4872	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	93
PID 2440 wrote to memory of 4872	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	93
PID 2440 wrote to memory of 4872	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	93
PID 2440 wrote to memory of 4872	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	93
PID 2440 wrote to memory of 4872	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	93
PID 2440 wrote to memory of 4872	2440	c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe	93

C:\Users\Admin\AppData\Local\Temp\c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe
"C:\Users\Admin\AppData\Local\Temp\c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ODwExtAZdSpo.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1932
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ODwExtAZdSpo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D5C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4700
- C:\Users\Admin\AppData\Local\Temp\c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe
  "C:\Users\Admin\AppData\Local\Temp\c1858ea28a880a9d789497986b541c29f79cb2d6de8aea568f09b309a7819c73.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4872

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f0g0o5wo.m4z.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7D5C.tmp

Filesize
1KB

MD5
9b612cf01e23671bd7f620e1131bb8ce

SHA1
f91ebc1ad9585b1c2112931d65cb23eb2462964b

SHA256
2fee3d2ac6e1a2c38dc40e55a28bb7c3284feb9cfd8c05c31c1ac2cab283993d

SHA512
413e7b4d77093ac7f851696108f56e63119013949569281f29f489df82b84e66ccbd6307ebb16bd474829de7a2a6f2864922cab575aadeaaeaa63d41c7e5d803

Download Submit
memory/1932-52-0x0000000004820000-0x0000000004830000-memory.dmp

Filesize
64KB

Download
memory/1932-55-0x0000000007640000-0x0000000007CBA000-memory.dmp

Filesize
6.5MB

Download
memory/1932-66-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1932-63-0x0000000007320000-0x0000000007328000-memory.dmp

Filesize
32KB

Download
memory/1932-62-0x0000000007340000-0x000000000735A000-memory.dmp

Filesize
104KB

Download
memory/1932-22-0x0000000004D40000-0x0000000004D62000-memory.dmp

Filesize
136KB

Download
memory/1932-61-0x0000000007240000-0x0000000007254000-memory.dmp

Filesize
80KB

Download
memory/1932-32-0x0000000005680000-0x00000000059D4000-memory.dmp

Filesize
3.3MB

Download
memory/1932-60-0x0000000007230000-0x000000000723E000-memory.dmp

Filesize
56KB

Download
memory/1932-15-0x00000000023B0000-0x00000000023E6000-memory.dmp

Filesize
216KB

Download
memory/1932-17-0x0000000004E60000-0x0000000005488000-memory.dmp

Filesize
6.2MB

Download
memory/1932-16-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1932-18-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1932-59-0x0000000007200000-0x0000000007211000-memory.dmp

Filesize
68KB

Download
memory/1932-20-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/1932-58-0x0000000007280000-0x0000000007316000-memory.dmp

Filesize
600KB

Download
memory/1932-24-0x0000000005490000-0x00000000054F6000-memory.dmp

Filesize
408KB

Download
memory/1932-23-0x0000000004DE0000-0x0000000004E46000-memory.dmp

Filesize
408KB

Download
memory/1932-57-0x0000000007070000-0x000000000707A000-memory.dmp

Filesize
40KB

Download
memory/1932-56-0x0000000007000000-0x000000000701A000-memory.dmp

Filesize
104KB

Download
memory/1932-54-0x0000000006EE0000-0x0000000006F83000-memory.dmp

Filesize
652KB

Download
memory/1932-53-0x0000000006290000-0x00000000062AE000-memory.dmp

Filesize
120KB

Download
memory/1932-42-0x0000000073490000-0x00000000734DC000-memory.dmp

Filesize
304KB

Download
memory/1932-38-0x0000000005CE0000-0x0000000005CFE000-memory.dmp

Filesize
120KB

Download
memory/1932-39-0x0000000005D70000-0x0000000005DBC000-memory.dmp

Filesize
304KB

Download
memory/1932-40-0x000000007F2B0000-0x000000007F2C0000-memory.dmp

Filesize
64KB

Download
memory/1932-41-0x0000000006EA0000-0x0000000006ED2000-memory.dmp

Filesize
200KB

Download
memory/2440-10-0x0000000007D70000-0x0000000007DE8000-memory.dmp

Filesize
480KB

Download
memory/2440-2-0x0000000005810000-0x0000000005DB4000-memory.dmp

Filesize
5.6MB

Download
memory/2440-9-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/2440-5-0x0000000005210000-0x000000000521A000-memory.dmp

Filesize
40KB

Download
memory/2440-3-0x0000000005260000-0x00000000052F2000-memory.dmp

Filesize
584KB

Download
memory/2440-7-0x00000000053B0000-0x00000000053C8000-memory.dmp

Filesize
96KB

Download
memory/2440-0-0x00000000749CE000-0x00000000749CF000-memory.dmp

Filesize
4KB

Download
memory/2440-4-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/2440-8-0x00000000749CE000-0x00000000749CF000-memory.dmp

Filesize
4KB

Download
memory/2440-1-0x0000000000750000-0x0000000000808000-memory.dmp

Filesize
736KB

Download
memory/2440-31-0x00000000749C0000-0x0000000075170000-memory.dmp

Filesize
7.7MB

Download
memory/2440-6-0x00000000054D0000-0x000000000556C000-memory.dmp

Filesize
624KB

Download
memory/4872-33-0x00000000014A0000-0x00000000017EA000-memory.dmp

Filesize
3.3MB

Download
memory/4872-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download