formbook | ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c

Analysis

max time kernel
66s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
24-11-2024 00:30

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General

Target

ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe
Size

254KB
MD5

7e86663fc95e3f20293b31f0cd963035
SHA1

2836048b1082fc7d3e6c7e7bbb6557b03b0b953c
SHA256

ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c
SHA512

4e629deff964155575d7f92cc2cbc35389f2c00de83a51389d9cffd170cde450acfd7ffa0eb9616535ea0a38587cd6b5917303bea0994960f9531fc7e6109df9
SSDEEP

6144:wBlL/caJNKQfAY5g28QFjaHWXJ4a2cqaplKYHPlFbfUwndzE0M1:CeavTIYtjaH9cqklvP/dzE0M1

Score

10^/10

formbook s3dy discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s3dy

Decoy

ravlygte.info

marketnewsville.online

flooring-envy.com

flavourhouston.com

donghohanghieunam.com

globleitsolutions.com

digitalgraphicarts.com

cupidbeautybar.com

cannavybes.com

negative-dsp.com

littledali.com

meltwatersoftware.info

blackdogland.com

danasales.com

mississippiscorecard.com

mainesmoker.com

sirenxinlilzixun.com

tychehang.com

gentciu.com

weckloltd.com

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

Processes:

resource	yara_rule
behavioral1/memory/2820-9-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Loads dropped DLL 1 IoCs

Processes:

ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe

pid	Process
2808	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe

description	pid	Process	procid_target
PID 2808 set thread context of 2820	2808	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe	30

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 1 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:

ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe

pid	Process
2820	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe

description	pid	Process	procid_target
PID 2808 wrote to memory of 2820	2808	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe	30
PID 2808 wrote to memory of 2820	2808	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe	30
PID 2808 wrote to memory of 2820	2808	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe	30
PID 2808 wrote to memory of 2820	2808	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe	30
PID 2808 wrote to memory of 2820	2808	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe	30
PID 2808 wrote to memory of 2820	2808	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe	30
PID 2808 wrote to memory of 2820	2808	ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe	30

C:\Users\Admin\AppData\Local\Temp\ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe
"C:\Users\Admin\AppData\Local\Temp\ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Users\Admin\AppData\Local\Temp\ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe
  "C:\Users\Admin\AppData\Local\Temp\ad43937eb3ac4cfd6bd460642102eafdd1d2007bdbd369e3db624613284c325c.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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\nsz5E86.tmp\gtlbztpsztf.dll

Filesize
49KB

MD5
6432c43cc5cb60bb4a484470e8693ab3

SHA1
78f0e1e34dbee0fee48d70949ff07deef94215bc

SHA256
e21a1e1f87a1c05b1c97688f72fce20e5f1c42f8579b49d189b3e06f3be8a735

SHA512
760c3906675ca690b23e195a7b4c295289dc6242e096ca3140fc199e41474fff7df0500243bde937e4e5ab311d2c4969f02b8b3d87b97bd26d3c3feee5a5ef6e

Download Submit
memory/2808-7-0x000000007420C000-0x000000007420E000-memory.dmp

Filesize
8KB

Download
memory/2820-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download