formbook | c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c

General

Target

c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe
Size

650KB
MD5

730cde87925272883e738b9eec270c8d
SHA1

4dab428287be9155966e69a8f44fe2001e123df1
SHA256

c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c
SHA512

10860f548f96cdd2c04ab5a8e5d5cec24b0bd519af3755e7282a0f5e2a4c87cf2e40aa2377080eb995f0f63cae31b1799ac86868bb5c334a86ad55dc1aabb0e1
SSDEEP

12288:1acQD3RbeX8esbnNVZgtW/g6PIlOv7NF8Q+hbncvj4m3XLU4Yrr0r/F:1hQD35eX8DZWOv7NF8Q+Kkm37ht

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 family
formbook

Formbook payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2736-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2736-16-0x0000000000BF0000-0x0000000000EF3000-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

Processes:

powershell.exe

pid	Process
2748	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe

description	pid	Process	procid_target
PID 2376 set thread context of 2736	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.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

Processes:

c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exepowershell.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exepowershell.exe

pid	Process
2736	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe
2748	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description	pid	Process
Token: SeDebugPrivilege	2748	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe

description	pid	Process	procid_target
PID 2376 wrote to memory of 2748	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	31
PID 2376 wrote to memory of 2748	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	31
PID 2376 wrote to memory of 2748	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	31
PID 2376 wrote to memory of 2748	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	31
PID 2376 wrote to memory of 2736	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	32
PID 2376 wrote to memory of 2736	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	32
PID 2376 wrote to memory of 2736	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	32
PID 2376 wrote to memory of 2736	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	32
PID 2376 wrote to memory of 2736	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	32
PID 2376 wrote to memory of 2736	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	32
PID 2376 wrote to memory of 2736	2376	c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe	32

C:\Users\Admin\AppData\Local\Temp\c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe
"C:\Users\Admin\AppData\Local\Temp\c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2376
- 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\c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2748
- C:\Users\Admin\AppData\Local\Temp\c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe
  "C:\Users\Admin\AppData\Local\Temp\c240de1c470b2ba22b8628de9a10b7d81e9f453eb94a46a9d0875f7f1705409c.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2736

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

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Downloads

memory/2376-6-0x0000000002200000-0x000000000227A000-memory.dmp

Filesize
488KB

Download
memory/2376-0-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/2376-2-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/2376-3-0x00000000005C0000-0x00000000005DC000-memory.dmp

Filesize
112KB

Download
memory/2376-4-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/2376-5-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/2376-1-0x0000000000B40000-0x0000000000BE8000-memory.dmp

Filesize
672KB

Download
memory/2376-12-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2736-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2736-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2736-13-0x0000000000BF0000-0x0000000000EF3000-memory.dmp

Filesize
3.0MB

Download
memory/2736-16-0x0000000000BF0000-0x0000000000EF3000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads