Analysis
- max time kernel
146s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
05/07/2024, 01:30
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe
Resource
win7-20240704-en
19 signatures
150 seconds
General
- Target 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe
- Size 446KB
- Sample240705-bw4xfsygrp
- SHA256 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12
- MD5 dcb0a260c42324fea0225b8f07939105
- SHA1 a550e5fd06f286f0e2427954fdcffea8333e1d27
- SHA512 cbb51b952b72b93586ef791056d3f45d4690199134b173b76942c104d1b8067cd6583d88dc3bc05c3e89905a4c63762f664d9832eefb2e6d6c71ec3c136a95d4
- SSDEEP 12288:EWQofC1P5wYpwmdfCrzhSLmi3Jf+Mg9e:EWK15wwwmdmEb3x+Mg8
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
xworm
Version
-
5.0
C2
-
127.0.0.1:2005
-
79.110.62.113:2005
Mutex
-
0QFmCI3ycTg10NnI
Attributes
-
install_file
USB.exe
aes.plain
Signatures
- Detect Xworm Payload 1 IoCs
resource yara_rule behavioral2/memory/1772-11-0x0000000000400000-0x000000000040E000-memory.dmp family_xworm - Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 4388 powershell.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1860 set thread context of 1772 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 83 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4388 powershell.exe 4388 powershell.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4388 powershell.exe Token: SeDebugPrivilege 1772 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe - Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1860 wrote to memory of 4388 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 81 PID 1860 wrote to memory of 4388 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 81 PID 1860 wrote to memory of 4388 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 81 PID 1860 wrote to memory of 1772 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 83 PID 1860 wrote to memory of 1772 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 83 PID 1860 wrote to memory of 1772 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 83 PID 1860 wrote to memory of 1772 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 83 PID 1860 wrote to memory of 1772 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 83 PID 1860 wrote to memory of 1772 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 83 PID 1860 wrote to memory of 1772 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 83 PID 1860 wrote to memory of 1772 1860 1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe"C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1860 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4388
-
-
C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe"C:\Users\Admin\AppData\Local\Temp\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1772
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1983ca8eb7b0270ef0681fa6fd3d1ca8cdf416800c2403be82e8d6cf2b722f12.exe.log
- Size 1KB
- SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
- MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
- SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
- SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_grh2py3t.0i1.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512