816c4baebc97255ce444d2b6575373ea7c0ff89de279503e3106a7f13500d076

Resubmissions

25-04-2024 18:30

240425-w5sk1ade57 10

15-04-2024 22:55

240415-2wbtsaae59 10

Analysis

max time kernel
134s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15-04-2024 22:55

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General

Target

MrsMajor3.0.exe
Size

381KB
MD5

35a27d088cd5be278629fae37d464182
SHA1

d5a291fadead1f2a0cf35082012fe6f4bf22a3ab
SHA256

4a75f2db1dbd3c1218bb9994b7e1c690c4edd4e0c1a675de8d2a127611173e69
SHA512

eb0be3026321864bd5bcf53b88dc951711d8c0b4bcbd46800b90ca5116a56dba22452530e29f3ccbbcc43d943bdefc8ed8ca2d31ba2e7e5f0e594f74adba4ab5
SSDEEP

6144:Th3idhONY259BH1DzJ5PzVNtGgc+F9TBd096cTKAsLEbqqbd+VWM8AHiKn9SlXNA:Th3iXPw9Tc6kVXMHHLEf8l7

Score

10^/10

agilenet evasion trojan

Malware Config

Signatures

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	wscript.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

MrsMajor3.0.exewscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	MrsMajor3.0.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	wscript.exe

Executes dropped EXE 1 IoCs

Processes:

eulascr.exe

pid process

3668 eulascr.exe
Loads dropped DLL 1 IoCs

Processes:

eulascr.exe

pid process

3668 eulascr.exe

pid	process
3668	eulascr.exe

pid	process
3668	eulascr.exe

Obfuscated with Agile.Net obfuscator 2 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\F126.tmp\eulascr.exe	agile_net
behavioral11/memory/3668-8-0x0000000000F20000-0x0000000000F4A000-memory.dmp	agile_net

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

eulascr.exe

pid process

3668 eulascr.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

eulascr.exe

description pid process

Token: SeDebugPrivilege 3668 eulascr.exe

pid	process
3668	eulascr.exe

description	pid	process
Token: SeDebugPrivilege	3668	eulascr.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

MrsMajor3.0.exewscript.exe

description	pid	process	target process
PID 4664 wrote to memory of 4628	4664	MrsMajor3.0.exe	wscript.exe
PID 4664 wrote to memory of 4628	4664	MrsMajor3.0.exe	wscript.exe
PID 4628 wrote to memory of 3668	4628	wscript.exe	eulascr.exe
PID 4628 wrote to memory of 3668	4628	wscript.exe	eulascr.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System	wscript.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	wscript.exe

C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe
"C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4664

C:\Windows\system32\wscript.exe
"C:\Windows\system32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\F126.tmp\F127.tmp\F128.vbs //Nologo
2⤵
- UAC bypass
- Checks computer location settings
- Suspicious use of WriteProcessMemory
- System policy modification
PID:4628

C:\Users\Admin\AppData\Local\Temp\F126.tmp\eulascr.exe
"C:\Users\Admin\AppData\Local\Temp\F126.tmp\eulascr.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3668

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4092 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:2008

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\5a530dfd-bc51-4992-a05d-f09d41a331d4\AgileDotNetRT64.dll
Filesize
75KB

MD5
42b2c266e49a3acd346b91e3b0e638c0

SHA1
2bc52134f03fcc51cb4e0f6c7cf70646b4df7dd1

SHA256
adeed015f06efa363d504a18acb671b1db4b20b23664a55c9bc28aef3283ca29

SHA512
770822fd681a1d98afe03f6fbe5f116321b54c8e2989fb07491811fd29fca5b666f1adf4c6900823af1271e342cacc9293e9db307c4eef852d1a253b00347a81

Download Submit
C:\Users\Admin\AppData\Local\Temp\F126.tmp\F127.tmp\F128.vbs
Filesize
352B

MD5
3b8696ecbb737aad2a763c4eaf62c247

SHA1
4a2d7a2d61d3f4c414b4e5d2933cd404b8f126e5

SHA256
ce95f7eea8b303bc23cfd6e41748ad4e7b5e0f0f1d3bdf390eadb1e354915569

SHA512
713d9697b892b9dd892537e8a01eab8d0265ebf64867c8beecf7a744321257c2a5c11d4de18fcb486bb69f199422ce3cab8b6afdbe880481c47b06ba8f335beb

Download Submit
C:\Users\Admin\AppData\Local\Temp\F126.tmp\eulascr.exe
Filesize
143KB

MD5
8b1c352450e480d9320fce5e6f2c8713

SHA1
d6bd88bf33de7c5d4e68b233c37cc1540c97bd3a

SHA256
2c343174231b55e463ca044d19d47bd5842793c15954583eb340bfd95628516e

SHA512
2d8e43b1021da08ed1bf5aff110159e6bc10478102c024371302ccfce595e77fd76794658617b5b52f9a50190db250c1ba486d247d9cd69e4732a768edbb4cbc

Download Submit
memory/3668-8-0x0000000000F20000-0x0000000000F4A000-memory.dmp

Filesize
168KB

Download
memory/3668-9-0x00007FFA05A10000-0x00007FFA064D1000-memory.dmp

Filesize
10.8MB

Download
memory/3668-10-0x000000001BB40000-0x000000001BB50000-memory.dmp

Filesize
64KB

Download
memory/3668-17-0x00007FFA04200000-0x00007FFA0434E000-memory.dmp

Filesize
1.3MB

Download
memory/3668-18-0x000000001BB40000-0x000000001BB50000-memory.dmp

Filesize
64KB

Download
memory/3668-19-0x000000001DF80000-0x000000001E142000-memory.dmp

Filesize
1.8MB

Download
memory/3668-20-0x000000001E680000-0x000000001EBA8000-memory.dmp

Filesize
5.2MB

Download
memory/3668-22-0x00007FFA05A10000-0x00007FFA064D1000-memory.dmp

Filesize
10.8MB

Download