ca843d9068ae1da8df82761dd4b4f4d9eb5385e3f6c891224d072c132b2eee84

Analysis

max time kernel
145s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18-01-2024 21:56

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General

Target

6621fe66d3196319bed56ee13bc5bb9e.exe
Size

54KB
MD5

6621fe66d3196319bed56ee13bc5bb9e
SHA1

f5602230a01428f5777085ffd7b3845fe9f051df
SHA256

ca843d9068ae1da8df82761dd4b4f4d9eb5385e3f6c891224d072c132b2eee84
SHA512

a155bc01a0a17035ce518a256de79351a35ab319776a6134ce893f14881f911b1184fd8ed1e5853c5743a1d8a6b7efac5c11f993a2362ddd3d34ceb136f7284e
SSDEEP

768:ir9UFZyxMwOyyvdGZ2eRDWVMQ11wF9wPwUlRIGAyhqQGSStOd4TTYydza:ipISqyeGZRJgMCSil8yhh6Yydza

Score

7^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
3656	6621fe66d3196319bed56ee13bc5bb9e.exe
2032	rundll32.exe
4612	rundll32.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3656-1-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3656-2-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/3656-8-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/4612-12-0x0000000000400000-0x000000000040E000-memory.dmp	upx
behavioral2/memory/4612-11-0x0000000000400000-0x000000000040E000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Windows Driver = "C:\\Windows\\rundll32.exe"	6621fe66d3196319bed56ee13bc5bb9e.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4184 set thread context of 3656	4184	6621fe66d3196319bed56ee13bc5bb9e.exe	87
PID 2032 set thread context of 4612	2032	rundll32.exe	89

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\rundll32.exe	6621fe66d3196319bed56ee13bc5bb9e.exe
File opened for modification	C:\Windows\rundll32.exe	6621fe66d3196319bed56ee13bc5bb9e.exe
File opened for modification	C:\Windows\rundll32.exe	rundll32.exe

Modifies Internet Explorer start page 1 TTPs 1 IoCs

stealer

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Start Page = "http://dbsarticles.com"	rundll32.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4184 wrote to memory of 3656	4184	6621fe66d3196319bed56ee13bc5bb9e.exe	87
PID 4184 wrote to memory of 3656	4184	6621fe66d3196319bed56ee13bc5bb9e.exe	87
PID 4184 wrote to memory of 3656	4184	6621fe66d3196319bed56ee13bc5bb9e.exe	87
PID 4184 wrote to memory of 3656	4184	6621fe66d3196319bed56ee13bc5bb9e.exe	87
PID 4184 wrote to memory of 3656	4184	6621fe66d3196319bed56ee13bc5bb9e.exe	87
PID 3656 wrote to memory of 2032	3656	6621fe66d3196319bed56ee13bc5bb9e.exe	88
PID 3656 wrote to memory of 2032	3656	6621fe66d3196319bed56ee13bc5bb9e.exe	88
PID 3656 wrote to memory of 2032	3656	6621fe66d3196319bed56ee13bc5bb9e.exe	88
PID 2032 wrote to memory of 4612	2032	rundll32.exe	89
PID 2032 wrote to memory of 4612	2032	rundll32.exe	89
PID 2032 wrote to memory of 4612	2032	rundll32.exe	89
PID 2032 wrote to memory of 4612	2032	rundll32.exe	89
PID 2032 wrote to memory of 4612	2032	rundll32.exe	89

C:\Users\Admin\AppData\Local\Temp\6621fe66d3196319bed56ee13bc5bb9e.exe
"C:\Users\Admin\AppData\Local\Temp\6621fe66d3196319bed56ee13bc5bb9e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4184
- C:\Users\Admin\AppData\Local\Temp\6621fe66d3196319bed56ee13bc5bb9e.exe
  C:\Users\Admin\AppData\Local\Temp\6621fe66d3196319bed56ee13bc5bb9e.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:3656
- - C:\Windows\rundll32.exe
    "C:\Windows\rundll32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - Suspicious use of WriteProcessMemory
    PID:2032
  - - C:\Windows\rundll32.exe
      C:\Windows\rundll32.exe
      4⤵
      Executes dropped EXE
      Modifies Internet Explorer start page
      PID:4612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\6621fe66d3196319bed56ee13bc5bb9e.exe

Filesize
54KB

MD5
6621fe66d3196319bed56ee13bc5bb9e

SHA1
f5602230a01428f5777085ffd7b3845fe9f051df

SHA256
ca843d9068ae1da8df82761dd4b4f4d9eb5385e3f6c891224d072c132b2eee84

SHA512
a155bc01a0a17035ce518a256de79351a35ab319776a6134ce893f14881f911b1184fd8ed1e5853c5743a1d8a6b7efac5c11f993a2362ddd3d34ceb136f7284e

Download Submit
memory/3656-1-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3656-2-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/3656-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4612-12-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4612-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads