formbook | 3682f76c6feec004f58d0b9c732b45215375d45f250bdac03fb3694097710c3f

Analysis

max time kernel
150s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
08/06/2023, 06:03

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General

Target

bb82589608f2312e9bf9d0c63c8a3d68.exe
Size

371KB
MD5

bb82589608f2312e9bf9d0c63c8a3d68
SHA1

c66d15184ef9a38a7423f1a6fbc60c94132051f9
SHA256

3682f76c6feec004f58d0b9c732b45215375d45f250bdac03fb3694097710c3f
SHA512

c839f9653e021cd06deaa1b529506596598473f8e62347a5a01e88a09fdf6316a17e5cad8502646fc40db955505c44082ba5ed1e62bd2ce8e8bf8daa1dcecb3a
SSDEEP

6144:A6dANzV+OT7ck3Ke1/Lhw5ewNi4F/oJrcy+ShsV6+gn:iP+OTQkFLhaez4FSVsVI

Score

10^/10

formbook guloader xchu downloader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

xchu

Decoy

zcartoons.com

castilloshowroom.com

3bmmdtod.life

misaxoxo.com

nadiya.online

sykkbup29.xyz

triciaaprimrosevp.com

newleter.com

ptzslk.xyz

lightbulbfestival.com

texaslandline.com

ideeintemporelle.com

girljustdoitpodcast.com

medimediamarketing.com

bunk7outfitters.com

charlievgrfminnick.click

lifestyleinthehome.com

atfbestsale.online

frontdoorproperties.co.uk

grandpaswag2024.info

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/1276-145-0x0000000000400000-0x0000000001654000-memory.dmp	formbook

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	bb82589608f2312e9bf9d0c63c8a3d68.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	bb82589608f2312e9bf9d0c63c8a3d68.exe

Loads dropped DLL 1 IoCs

pid	Process
2704	bb82589608f2312e9bf9d0c63c8a3d68.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1276	bb82589608f2312e9bf9d0c63c8a3d68.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2704	bb82589608f2312e9bf9d0c63c8a3d68.exe
1276	bb82589608f2312e9bf9d0c63c8a3d68.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2704 set thread context of 1276	2704	bb82589608f2312e9bf9d0c63c8a3d68.exe	82

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1276	bb82589608f2312e9bf9d0c63c8a3d68.exe
1276	bb82589608f2312e9bf9d0c63c8a3d68.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2704	bb82589608f2312e9bf9d0c63c8a3d68.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 1276	2704	bb82589608f2312e9bf9d0c63c8a3d68.exe	82
PID 2704 wrote to memory of 1276	2704	bb82589608f2312e9bf9d0c63c8a3d68.exe	82
PID 2704 wrote to memory of 1276	2704	bb82589608f2312e9bf9d0c63c8a3d68.exe	82
PID 2704 wrote to memory of 1276	2704	bb82589608f2312e9bf9d0c63c8a3d68.exe	82

C:\Users\Admin\AppData\Local\Temp\bb82589608f2312e9bf9d0c63c8a3d68.exe
"C:\Users\Admin\AppData\Local\Temp\bb82589608f2312e9bf9d0c63c8a3d68.exe"
1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Users\Admin\AppData\Local\Temp\bb82589608f2312e9bf9d0c63c8a3d68.exe
  "C:\Users\Admin\AppData\Local\Temp\bb82589608f2312e9bf9d0c63c8a3d68.exe"
  2⤵
  - Checks QEMU agent file
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:1276

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsz6D08.tmp\System.dll

Filesize
11KB

MD5
0063d48afe5a0cdc02833145667b6641

SHA1
e7eb614805d183ecb1127c62decb1a6be1b4f7a8

SHA256
ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7

SHA512
71cbbcaeb345e09306e368717ea0503fe8df485be2e95200febc61bcd8ba74fb4211cd263c232f148c0123f6c6f2e3fd4ea20bdecc4070f5208c35c6920240f0

Download Submit
memory/1276-142-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1276-143-0x0000000001660000-0x000000000487F000-memory.dmp

Filesize
50.1MB

Download
memory/1276-144-0x0000000001660000-0x000000000487F000-memory.dmp

Filesize
50.1MB

Download
memory/1276-145-0x0000000000400000-0x0000000001654000-memory.dmp

Filesize
18.3MB

Download
memory/1276-146-0x0000000001660000-0x000000000487F000-memory.dmp

Filesize
50.1MB

Download
memory/1276-147-0x0000000001660000-0x000000000487F000-memory.dmp

Filesize
50.1MB

Download
memory/1276-148-0x0000000034CC0000-0x000000003500A000-memory.dmp

Filesize
3.3MB

Download
memory/2704-140-0x0000000003230000-0x000000000644F000-memory.dmp

Filesize
50.1MB

Download
memory/2704-141-0x0000000003230000-0x000000000644F000-memory.dmp

Filesize
50.1MB

Download