formbook | 883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5

General

Target

883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe
Size

590KB
MD5

da966801158ea63939a23e310275241a
SHA1

ef1f98cd080aca6cbf0b1ea8b08e7ab492435ae8
SHA256

883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5
SHA512

0942fbf2efc18d7feff67c24c9d36528ab63937daa3d84c0f34f22d1466d184f38af24a5d264d908b252b6c3c3463f3b33e241aa72ba3e9bec43c55037c58bfd
SSDEEP

12288:Uh8bQbrxKlcjdOliPwsSpRYAKrgCqZKVvsABefO5fw:U+I9kiPqR/04KCABem

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/2152-11-0x0000000000400000-0x000000000042F000-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
2968	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3040 set thread context of 2152	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	33

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	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2152	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe
2968	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2968	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 2968	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	31
PID 3040 wrote to memory of 2968	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	31
PID 3040 wrote to memory of 2968	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	31
PID 3040 wrote to memory of 2968	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	31
PID 3040 wrote to memory of 2152	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	33
PID 3040 wrote to memory of 2152	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	33
PID 3040 wrote to memory of 2152	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	33
PID 3040 wrote to memory of 2152	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	33
PID 3040 wrote to memory of 2152	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	33
PID 3040 wrote to memory of 2152	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	33
PID 3040 wrote to memory of 2152	3040	883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe	33

C:\Users\Admin\AppData\Local\Temp\883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe
"C:\Users\Admin\AppData\Local\Temp\883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3040
- 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\883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2968
- C:\Users\Admin\AppData\Local\Temp\883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe
  "C:\Users\Admin\AppData\Local\Temp\883b2afba671ff4851527b315260a4415a111c013811fec1822dcae4076628e5.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2152

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/2152-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2152-13-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/2152-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2152-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2152-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3040-3-0x00000000002F0000-0x0000000000302000-memory.dmp

Filesize
72KB

Download
memory/3040-6-0x00000000052B0000-0x0000000005326000-memory.dmp

Filesize
472KB

Download
memory/3040-5-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/3040-4-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/3040-0-0x00000000745BE000-0x00000000745BF000-memory.dmp

Filesize
4KB

Download
memory/3040-2-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/3040-12-0x00000000745B0000-0x0000000074C9E000-memory.dmp

Filesize
6.9MB

Download
memory/3040-1-0x0000000000230000-0x00000000002CA000-memory.dmp

Filesize
616KB

Download

Analysis

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