formbook | 1b086a52b64bdeb68a4b45fdfeb8eab59403fcb90cc2383b13ff5c8d4b7ab256

Analysis

max time kernel
149s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-10-2024 10:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

RFQ232110.exe
Size

665KB
MD5

d57281188377857e91520a46ad75a1d8
SHA1

2b99fd634fde701062cb163bfdc5c410a872e50f
SHA256

e1902171c2bba8b0280e747ec2457209c1b32bf899d85f241c2993fdcba1ac31
SHA512

89f5424a818efd91c13acb7f38c3a9b0d1959abada6e5aba96dec591b1ce275cac26b00a94371f7fe90d1f250b9370ac089c0253392eda96fa9e11d032868719
SSDEEP

12288:mLNhkYRig7eFSYOErtXYHaVely7tpdV84KkRfAovmE:SHag7WnvhDT7L84Kb5E

Score

10^/10

formbook cu29 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cu29

Decoy

qidr.shop

usinessaviationconsulting.net

68716329.xyz

nd-los.net

ealthironcladguarantee.shop

oftware-download-69354.bond

48372305.top

omeownershub.top

mall-chilli.top

ajakgoid.online

ire-changer-53482.bond

rugsrx.shop

oyang123.info

azino-forum-pro.online

817715.rest

layman.vip

eb777.club

ovatonica.net

urgaslotvip.website

inn-paaaa.buzz

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2748-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2748-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2748-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3860-26-0x0000000000670000-0x000000000069F000-memory.dmp	formbook

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4192 set thread context of 2748	4192	RFQ232110.exe	86
PID 2748 set thread context of 3392	2748	vbc.exe	56
PID 2748 set thread context of 3392	2748	vbc.exe	56
PID 3860 set thread context of 3392	3860	NETSTAT.EXE	56

System Location Discovery: System Language Discovery 1 TTPs 3 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	RFQ232110.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
3860	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 56 IoCs

pid	Process
2748	vbc.exe
2748	vbc.exe
2748	vbc.exe
2748	vbc.exe
2748	vbc.exe
2748	vbc.exe
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE
3860	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2748	vbc.exe
2748	vbc.exe
2748	vbc.exe
2748	vbc.exe
3860	NETSTAT.EXE
3860	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2748	vbc.exe
Token: SeDebugPrivilege	3860	NETSTAT.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3392	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4192 wrote to memory of 2748	4192	RFQ232110.exe	86
PID 4192 wrote to memory of 2748	4192	RFQ232110.exe	86
PID 4192 wrote to memory of 2748	4192	RFQ232110.exe	86
PID 4192 wrote to memory of 2748	4192	RFQ232110.exe	86
PID 4192 wrote to memory of 2748	4192	RFQ232110.exe	86
PID 4192 wrote to memory of 2748	4192	RFQ232110.exe	86
PID 3392 wrote to memory of 3860	3392	Explorer.EXE	87
PID 3392 wrote to memory of 3860	3392	Explorer.EXE	87
PID 3392 wrote to memory of 3860	3392	Explorer.EXE	87
PID 3860 wrote to memory of 216	3860	NETSTAT.EXE	88
PID 3860 wrote to memory of 216	3860	NETSTAT.EXE	88
PID 3860 wrote to memory of 216	3860	NETSTAT.EXE	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3392
- C:\Users\Admin\AppData\Local\Temp\RFQ232110.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ232110.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4192
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2748
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3860
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2748-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2748-17-0x0000000001540000-0x0000000001555000-memory.dmp

Filesize
84KB

Download
memory/2748-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2748-14-0x00000000015D0000-0x000000000191A000-memory.dmp

Filesize
3.3MB

Download
memory/2748-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2748-21-0x00000000015A0000-0x00000000015B5000-memory.dmp

Filesize
84KB

Download
memory/3392-30-0x0000000008340000-0x0000000008410000-memory.dmp

Filesize
832KB

Download
memory/3392-23-0x00000000047B0000-0x0000000004881000-memory.dmp

Filesize
836KB

Download
memory/3392-22-0x0000000006E00000-0x0000000006F24000-memory.dmp

Filesize
1.1MB

Download
memory/3392-18-0x00000000047B0000-0x0000000004881000-memory.dmp

Filesize
836KB

Download
memory/3392-27-0x0000000006E00000-0x0000000006F24000-memory.dmp

Filesize
1.1MB

Download
memory/3392-32-0x0000000008340000-0x0000000008410000-memory.dmp

Filesize
832KB

Download
memory/3392-33-0x0000000008340000-0x0000000008410000-memory.dmp

Filesize
832KB

Download
memory/3860-24-0x0000000000B60000-0x0000000000B6B000-memory.dmp

Filesize
44KB

Download
memory/3860-25-0x0000000000B60000-0x0000000000B6B000-memory.dmp

Filesize
44KB

Download
memory/3860-26-0x0000000000670000-0x000000000069F000-memory.dmp

Filesize
188KB

Download
memory/4192-8-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4192-13-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4192-7-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/4192-6-0x0000000005320000-0x0000000005338000-memory.dmp

Filesize
96KB

Download
memory/4192-5-0x0000000074810000-0x0000000074FC0000-memory.dmp

Filesize
7.7MB

Download
memory/4192-0-0x000000007481E000-0x000000007481F000-memory.dmp

Filesize
4KB

Download
memory/4192-9-0x00000000063E0000-0x0000000006456000-memory.dmp

Filesize
472KB

Download
memory/4192-10-0x0000000008A10000-0x0000000008AAC000-memory.dmp

Filesize
624KB

Download
memory/4192-4-0x0000000004D50000-0x0000000004D5A000-memory.dmp

Filesize
40KB

Download
memory/4192-3-0x0000000004DA0000-0x0000000004E32000-memory.dmp

Filesize
584KB

Download
memory/4192-2-0x0000000005350000-0x00000000058F4000-memory.dmp

Filesize
5.6MB

Download
memory/4192-1-0x00000000002B0000-0x000000000035C000-memory.dmp

Filesize
688KB

Download