formbook | 18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795

General

Target

18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe
Size

798KB
MD5

db7625a1f6c3e496e64476cddde38f61
SHA1

43034a4a3e0c9e36691be73e3d031adf68ff924c
SHA256

18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795
SHA512

b4905c46b78ff9f880d8c5307d89069ad0d0c91e43dd6b3e9806cf77b39a9b11eace87bdadc0929b98146e5ab41cdda47f897b0ead391ab36091fbb29e0fb95e
SSDEEP

12288:cucFZ6W/vdWvR1/YLReWFabike8lf/yCrUhEaxcYrUx3F+Y1Gd:Fc7NWvPeRl0bike8lfHrUhVcPtMY1Gd

Score

10^/10

formbook bc01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bc01

Decoy

epatitis-treatment-26155.bond

52cy67sk.bond

nline-degree-6987776.world

ingxingdiandeng-2033.top

mberbreeze.cyou

48xc300mw.autos

obs-for-seniors-39582.bond

tpetersburg-3-tonn.online

egafon-parser.online

172jh.shop

ltraman.pro

bqfhnys.shop

ntercash24-cad.homes

uhtwister.cloud

alk-in-tubs-27353.bond

ucas-saaad.buzz

oko.events

8080713.xyz

refabricated-homes-74404.bond

inaa.boo

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
behavioral1/memory/2248-13-0x0000000000400000-0x000000000042F000-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
2560	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1388 set thread context of 2248	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	32

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2248	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe
2560	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2560	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 2560	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	31
PID 1388 wrote to memory of 2560	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	31
PID 1388 wrote to memory of 2560	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	31
PID 1388 wrote to memory of 2560	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	31
PID 1388 wrote to memory of 2248	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	32
PID 1388 wrote to memory of 2248	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	32
PID 1388 wrote to memory of 2248	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	32
PID 1388 wrote to memory of 2248	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	32
PID 1388 wrote to memory of 2248	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	32
PID 1388 wrote to memory of 2248	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	32
PID 1388 wrote to memory of 2248	1388	18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe	32

C:\Users\Admin\AppData\Local\Temp\18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe
"C:\Users\Admin\AppData\Local\Temp\18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1388
- 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\18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2560
- C:\Users\Admin\AppData\Local\Temp\18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe
  "C:\Users\Admin\AppData\Local\Temp\18911c12980ff90d3ca5b456a41ba93f6e63d14efa8763ee354c3684e0632795.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2248

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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/1388-6-0x0000000004E20000-0x0000000004E96000-memory.dmp

Filesize
472KB

Download
memory/1388-1-0x00000000012A0000-0x000000000136E000-memory.dmp

Filesize
824KB

Download
memory/1388-2-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/1388-3-0x00000000004B0000-0x00000000004C0000-memory.dmp

Filesize
64KB

Download
memory/1388-4-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/1388-5-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/1388-0-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/1388-14-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/2248-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2248-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2248-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2248-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2248-15-0x0000000000870000-0x0000000000B73000-memory.dmp

Filesize
3.0MB

Download

Analysis

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