549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75

Analysis

max time kernel
90s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2022 18:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75.exe
Size

608KB
MD5

41ef837433847acf45cee2c98b32afb4
SHA1

538892e2ee5b53da1ec8410889aec16f7cba98be
SHA256

549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75
SHA512

c01904daec1f8ca4114e3ed6daddbe45a891ec3f88568bc875dd6c85a910b20749262f31eb8ffb910e25947e06499d808c8c5a674ef5e5989260949e84c2509b

Score

9^/10

collection

Malware Config

Signatures

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2712-144-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/2712-146-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral2/memory/2712-147-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 4 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1916-150-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView
behavioral2/memory/1916-152-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView
behavioral2/memory/1916-153-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView
behavioral2/memory/1916-155-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView

Nirsoft 7 IoCs

resource	yara_rule
behavioral2/memory/2712-144-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/2712-146-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/2712-147-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral2/memory/1916-150-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft
behavioral2/memory/1916-152-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft
behavioral2/memory/1916-153-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft
behavioral2/memory/1916-155-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft

Executes dropped EXE 2 IoCs

pid	Process
4780	files.exe
4596	files.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	checkip.dyndns.org

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4780 set thread context of 4596	4780	files.exe	82
PID 4596 set thread context of 2712	4596	files.exe	83
PID 4596 set thread context of 1916	4596	files.exe	85

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
3620	549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75.exe
4780	files.exe
4780	files.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe
1916	vbc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3620	549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75.exe
Token: SeDebugPrivilege	4780	files.exe
Token: SeDebugPrivilege	4596	files.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4596	files.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 3620 wrote to memory of 4780	3620	549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75.exe	81
PID 3620 wrote to memory of 4780	3620	549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75.exe	81
PID 3620 wrote to memory of 4780	3620	549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75.exe	81
PID 4780 wrote to memory of 4596	4780	files.exe	82
PID 4780 wrote to memory of 4596	4780	files.exe	82
PID 4780 wrote to memory of 4596	4780	files.exe	82
PID 4780 wrote to memory of 4596	4780	files.exe	82
PID 4780 wrote to memory of 4596	4780	files.exe	82
PID 4780 wrote to memory of 4596	4780	files.exe	82
PID 4780 wrote to memory of 4596	4780	files.exe	82
PID 4780 wrote to memory of 4596	4780	files.exe	82
PID 4596 wrote to memory of 2712	4596	files.exe	83
PID 4596 wrote to memory of 2712	4596	files.exe	83
PID 4596 wrote to memory of 2712	4596	files.exe	83
PID 4596 wrote to memory of 2712	4596	files.exe	83
PID 4596 wrote to memory of 2712	4596	files.exe	83
PID 4596 wrote to memory of 2712	4596	files.exe	83
PID 4596 wrote to memory of 2712	4596	files.exe	83
PID 4596 wrote to memory of 2712	4596	files.exe	83
PID 4596 wrote to memory of 2712	4596	files.exe	83
PID 4596 wrote to memory of 1916	4596	files.exe	85
PID 4596 wrote to memory of 1916	4596	files.exe	85
PID 4596 wrote to memory of 1916	4596	files.exe	85
PID 4596 wrote to memory of 1916	4596	files.exe	85
PID 4596 wrote to memory of 1916	4596	files.exe	85
PID 4596 wrote to memory of 1916	4596	files.exe	85
PID 4596 wrote to memory of 1916	4596	files.exe	85
PID 4596 wrote to memory of 1916	4596	files.exe	85
PID 4596 wrote to memory of 1916	4596	files.exe	85

C:\Users\Admin\AppData\Local\Temp\549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75.exe
"C:\Users\Admin\AppData\Local\Temp\549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3620
- C:\Users\Admin\Documents\files.exe
  "C:\Users\Admin\Documents\files.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4780
- - C:\Users\Admin\Documents\files.exe
    "C:\Users\Admin\Documents\files.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4596
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\\Mail.txt"
      4⤵
      Accesses Microsoft Outlook accounts
      PID:2712
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\\Web.txt"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1916

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\files.exe.log

Filesize
312B

MD5
d4b49ac61a6cac139f96450777c10204

SHA1
92089d33442c9e2eaceac3ed8db6a7168f938e5a

SHA256
807bdfa62a4312030c1ed54981674cff77f6108e6b4957754cabb810098ce082

SHA512
eb13a0e7f0d4b44db7e8d0625ba1ee6a036083c39c24b85493d3ec9074ada03eb7003b97bd92ed5f2baaf26295a4690303332593c4776e75da5bc3b6adbc3ea6

Download Submit
C:\Users\Admin\AppData\Local\Temp\Web.txt

Filesize
3KB

MD5
b9daf88205e7429feaceda806bd561d2

SHA1
1893c80e74cfea9914343c6e4213393804a92dd1

SHA256
efa03262d4c3f5a46ab526946b8c7450d37eff4b5f8d53b43468655eea8cc027

SHA512
649ba70698611bd66aa91e40aaa81327a60efc098c1705729f9eb316c18e9bcca6af2363b24f8ac4aea5d25f12303833aedaada6fd26f1eebb86711a4e9baaf1

Download Submit
C:\Users\Admin\AppData\Roaming\New text document.txt

Filesize
32B

MD5
23333eed06d0565364f6b827d5f60520

SHA1
8b161f2f9a2bf2dcef181d76b932c6a22a88b8d7

SHA256
c09ee462f8a6285b8dceac49cf75a8a3e63b8425a5b2abca9a8dc58744942173

SHA512
3e3239176c98c18ec700e96de68f4c9f7b17b90eb578f159f6be5d92366c8d01ff8a509193689f7e7a94e1bfce01ef9ceeadc94ae2c81a27f718a19b149111f8

Download Submit
C:\Users\Admin\Documents\files.exe

Filesize
608KB

MD5
41ef837433847acf45cee2c98b32afb4

SHA1
538892e2ee5b53da1ec8410889aec16f7cba98be

SHA256
549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75

SHA512
c01904daec1f8ca4114e3ed6daddbe45a891ec3f88568bc875dd6c85a910b20749262f31eb8ffb910e25947e06499d808c8c5a674ef5e5989260949e84c2509b

Download Submit
C:\Users\Admin\Documents\files.exe

Filesize
608KB

MD5
41ef837433847acf45cee2c98b32afb4

SHA1
538892e2ee5b53da1ec8410889aec16f7cba98be

SHA256
549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75

SHA512
c01904daec1f8ca4114e3ed6daddbe45a891ec3f88568bc875dd6c85a910b20749262f31eb8ffb910e25947e06499d808c8c5a674ef5e5989260949e84c2509b

Download Submit
C:\Users\Admin\Documents\files.exe

Filesize
608KB

MD5
41ef837433847acf45cee2c98b32afb4

SHA1
538892e2ee5b53da1ec8410889aec16f7cba98be

SHA256
549eff7aa00eb51802988e887308d41e895d287e950c1744eafb1ecc587c0d75

SHA512
c01904daec1f8ca4114e3ed6daddbe45a891ec3f88568bc875dd6c85a910b20749262f31eb8ffb910e25947e06499d808c8c5a674ef5e5989260949e84c2509b

Download Submit
memory/1916-153-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1916-152-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1916-155-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1916-150-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2712-146-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2712-147-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2712-144-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3620-134-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/3620-130-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/4596-142-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/4596-148-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/4596-138-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/4780-141-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download
memory/4780-136-0x0000000074F70000-0x0000000075521000-memory.dmp

Filesize
5.7MB

Download