formbook | b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0

Analysis

max time kernel
96s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 02:24

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General

Target

b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe
Size

548KB
MD5

50b2874b18ed801760721ddeceaa2e2f
SHA1

28be937d4825809f593da427dd258b2aed86e05a
SHA256

b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0
SHA512

eddee0d37ff0847c01e910d8445cdf91551530f4eab74a6ada32995a6d577ab2239986580887314578e54bb99fc7a4d84ff3d5de74848506951e8eb5c5bbfb24
SSDEEP

12288:Kwbv8EXjsnoqXcT6gEkF6lLWBmccwip9X5C/ow:hbvfgoqs/Eo6/ccFk/

Score

10^/10

formbook c24t discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c24t

Decoy

ealthbridgeccs.online

ngelicais.art

uktuksu1.sbs

fapoker.asia

hecreature.tech

orenzoplaybest14.xyz

op-smartphones-deal.today

delark.click

7395.asia

otnews.cfd

j16e.xyz

oko.events

fscxb.top

roudtxliberals.vote

asas-br.bond

ourhealthyourlife.shop

fbpd.top

j9u9.xyz

uijiuw.top

aming-chair-37588.bond

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/4992-12-0x0000000000400000-0x000000000042F000-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
1084	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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4884 set thread context of 4992	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	91

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	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe
4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe
4992	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe
4992	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe
1084	powershell.exe
1084	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe
Token: SeDebugPrivilege	1084	powershell.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 1084	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	89
PID 4884 wrote to memory of 1084	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	89
PID 4884 wrote to memory of 1084	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	89
PID 4884 wrote to memory of 4992	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	91
PID 4884 wrote to memory of 4992	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	91
PID 4884 wrote to memory of 4992	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	91
PID 4884 wrote to memory of 4992	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	91
PID 4884 wrote to memory of 4992	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	91
PID 4884 wrote to memory of 4992	4884	b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe	91

C:\Users\Admin\AppData\Local\Temp\b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe
"C:\Users\Admin\AppData\Local\Temp\b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.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:4884
- 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\b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1084
- C:\Users\Admin\AppData\Local\Temp\b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe
  "C:\Users\Admin\AppData\Local\Temp\b71b353da449108a5ed6aac6e44133552651be0099dbba14884af1406874eaa0.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4992

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_ca1k3jnf.bpf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1084-49-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/1084-51-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/1084-63-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/1084-23-0x0000000005EF0000-0x0000000005F56000-memory.dmp

Filesize
408KB

Download
memory/1084-22-0x00000000057E0000-0x0000000005846000-memory.dmp

Filesize
408KB

Download
memory/1084-60-0x0000000007D60000-0x0000000007D68000-memory.dmp

Filesize
32KB

Download
memory/1084-59-0x0000000007D80000-0x0000000007D9A000-memory.dmp

Filesize
104KB

Download
memory/1084-58-0x0000000007C80000-0x0000000007C94000-memory.dmp

Filesize
80KB

Download
memory/1084-56-0x0000000007C40000-0x0000000007C51000-memory.dmp

Filesize
68KB

Download
memory/1084-55-0x0000000007CC0000-0x0000000007D56000-memory.dmp

Filesize
600KB

Download
memory/1084-54-0x0000000007AB0000-0x0000000007ABA000-memory.dmp

Filesize
40KB

Download
memory/1084-53-0x0000000007A40000-0x0000000007A5A000-memory.dmp

Filesize
104KB

Download
memory/1084-52-0x0000000008080000-0x00000000086FA000-memory.dmp

Filesize
6.5MB

Download
memory/1084-37-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/1084-16-0x000000007502E000-0x000000007502F000-memory.dmp

Filesize
4KB

Download
memory/1084-50-0x0000000007700000-0x00000000077A3000-memory.dmp

Filesize
652KB

Download
memory/1084-19-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/1084-17-0x0000000005140000-0x0000000005176000-memory.dmp

Filesize
216KB

Download
memory/1084-20-0x00000000058C0000-0x0000000005EE8000-memory.dmp

Filesize
6.2MB

Download
memory/1084-21-0x0000000005640000-0x0000000005662000-memory.dmp

Filesize
136KB

Download
memory/1084-57-0x0000000007C70000-0x0000000007C7E000-memory.dmp

Filesize
56KB

Download
memory/1084-36-0x0000000006CE0000-0x0000000006D12000-memory.dmp

Filesize
200KB

Download
memory/1084-18-0x0000000075020000-0x00000000757D0000-memory.dmp

Filesize
7.7MB

Download
memory/1084-33-0x00000000060E0000-0x0000000006434000-memory.dmp

Filesize
3.3MB

Download
memory/1084-34-0x00000000066F0000-0x000000000670E000-memory.dmp

Filesize
120KB

Download
memory/1084-35-0x00000000067A0000-0x00000000067EC000-memory.dmp

Filesize
304KB

Download
memory/1084-38-0x0000000070E40000-0x0000000070E8C000-memory.dmp

Filesize
304KB

Download
memory/1084-48-0x00000000076D0000-0x00000000076EE000-memory.dmp

Filesize
120KB

Download
memory/4884-4-0x0000000004DE0000-0x0000000004DEA000-memory.dmp

Filesize
40KB

Download
memory/4884-11-0x0000000009010000-0x00000000090AC000-memory.dmp

Filesize
624KB

Download
memory/4884-1-0x0000000000340000-0x00000000003D0000-memory.dmp

Filesize
576KB

Download
memory/4884-3-0x0000000004E00000-0x0000000004E92000-memory.dmp

Filesize
584KB

Download
memory/4884-0-0x0000000074FAE000-0x0000000074FAF000-memory.dmp

Filesize
4KB

Download
memory/4884-14-0x0000000074FA0000-0x0000000075750000-memory.dmp

Filesize
7.7MB

Download
memory/4884-5-0x0000000074FA0000-0x0000000075750000-memory.dmp

Filesize
7.7MB

Download
memory/4884-2-0x0000000005310000-0x00000000058B4000-memory.dmp

Filesize
5.6MB

Download
memory/4884-10-0x0000000006950000-0x00000000069C6000-memory.dmp

Filesize
472KB

Download
memory/4884-9-0x0000000074FA0000-0x0000000075750000-memory.dmp

Filesize
7.7MB

Download
memory/4884-8-0x0000000074FAE000-0x0000000074FAF000-memory.dmp

Filesize
4KB

Download
memory/4884-7-0x0000000005020000-0x0000000005030000-memory.dmp

Filesize
64KB

Download
memory/4884-6-0x0000000006610000-0x00000000066A4000-memory.dmp

Filesize
592KB

Download
memory/4992-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4992-15-0x0000000001A20000-0x0000000001D6A000-memory.dmp

Filesize
3.3MB

Download