44862c2a9db11af1dc86f515dffa4b34cecca13c488af038cd69f99838376a66

General

Target

2024-11-19_3c56709aaa2cf517aef6f78021a4c0eb_cobalt-strike_megazord.exe
Size

14.7MB
MD5

3c56709aaa2cf517aef6f78021a4c0eb
SHA1

1f3eb8a98ab052feffe67271046bd74f3323785e
SHA256

44862c2a9db11af1dc86f515dffa4b34cecca13c488af038cd69f99838376a66
SHA512

8c917400882348d4698eaf2259a63771847593ca3edfda22ff2a15bd7d43183629029c7605ca0b4194436b1d26e58e563ac1df69bbb73c171c4138ab0cc91d5b
SSDEEP

196608:TZdyirGA46KGiTjG1XG8gpmjX1fb4gYYdQZ2BHU:TrRGb1Tx8gkT4gY4s

Score

8^/10

discovery execution upx

Malware Config

Signatures

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.

execution

PowerShell

T1059.001

pid	Process
4784	powershell.exe

Downloads MZ/PE file

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2024-11-19_3c56709aaa2cf517aef6f78021a4c0eb_cobalt-strike_megazord.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	ServiceUpdate.exe

Executes dropped EXE 4 IoCs

pid	Process
436	ServiceUpdate.exe
2120	WindowsUpdate.exe
5084	WindowsUpdate.exe
536	WindowsUpdate.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023c79-40.dat	upx
behavioral2/memory/2120-43-0x0000000000F00000-0x0000000000F64000-memory.dmp	upx
behavioral2/memory/2120-45-0x0000000000F00000-0x0000000000F64000-memory.dmp	upx
behavioral2/memory/5084-47-0x0000000000F00000-0x0000000000F64000-memory.dmp	upx
behavioral2/memory/536-50-0x0000000000F00000-0x0000000000F64000-memory.dmp	upx

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\ServiceUpdate.exe	2024-11-19_3c56709aaa2cf517aef6f78021a4c0eb_cobalt-strike_megazord.exe
File created	C:\Windows\WindowsUpdate.exe	ServiceUpdate.exe

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

System Information Discovery
T1082

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	WindowsUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WindowsUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WindowsUpdate.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4784	powershell.exe
4784	powershell.exe
436	ServiceUpdate.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4784	powershell.exe
Token: SeDebugPrivilege	436	ServiceUpdate.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2292 wrote to memory of 4472	2292	2024-11-19_3c56709aaa2cf517aef6f78021a4c0eb_cobalt-strike_megazord.exe	104
PID 2292 wrote to memory of 4472	2292	2024-11-19_3c56709aaa2cf517aef6f78021a4c0eb_cobalt-strike_megazord.exe	104
PID 4472 wrote to memory of 4784	4472	cmd.exe	106
PID 4472 wrote to memory of 4784	4472	cmd.exe	106
PID 2292 wrote to memory of 436	2292	2024-11-19_3c56709aaa2cf517aef6f78021a4c0eb_cobalt-strike_megazord.exe	108
PID 2292 wrote to memory of 436	2292	2024-11-19_3c56709aaa2cf517aef6f78021a4c0eb_cobalt-strike_megazord.exe	108
PID 436 wrote to memory of 2120	436	ServiceUpdate.exe	111
PID 436 wrote to memory of 2120	436	ServiceUpdate.exe	111
PID 436 wrote to memory of 2120	436	ServiceUpdate.exe	111
PID 436 wrote to memory of 5084	436	ServiceUpdate.exe	113
PID 436 wrote to memory of 5084	436	ServiceUpdate.exe	113
PID 436 wrote to memory of 5084	436	ServiceUpdate.exe	113
PID 436 wrote to memory of 536	436	ServiceUpdate.exe	116
PID 436 wrote to memory of 536	436	ServiceUpdate.exe	116
PID 436 wrote to memory of 536	436	ServiceUpdate.exe	116

C:\Users\Admin\AppData\Local\Temp\2024-11-19_3c56709aaa2cf517aef6f78021a4c0eb_cobalt-strike_megazord.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-19_3c56709aaa2cf517aef6f78021a4c0eb_cobalt-strike_megazord.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /C powershell -Command "Add-MpPreference -ExclusionPath 'C:\Windows\ServiceUpdate.exe'"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4472
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -Command "Add-MpPreference -ExclusionPath 'C:\Windows\ServiceUpdate.exe'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4784
- C:\Windows\ServiceUpdate.exe
  "C:\Windows\ServiceUpdate.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:436
- - C:\Windows\WindowsUpdate.exe
    "C:\Windows\WindowsUpdate.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2120
- - C:\Windows\WindowsUpdate.exe
    "C:\Windows\WindowsUpdate.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5084
- - C:\Windows\WindowsUpdate.exe
    "C:\Windows\WindowsUpdate.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uktsivka.kpq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Windows\ServiceUpdate.exe

Filesize
42KB

MD5
cf04317fdd2c24d8e17e6d16a932faf6

SHA1
44c273ffa8adcb4b05bf7fb43865459b7748e8e9

SHA256
68e54fb81888bf034822a4a1024a64825b75b66db6ed5cded4bfa877e3c501ca

SHA512
93ffde81a9129586ead3766ec40bffab8caac3f3c9e1c855ac747fa7db2f95dcee45b9d8341f53ef801323e27eb0100e1c63886b02f6cb5c1b1c50afde5b861d

Download Submit
C:\Windows\WindowsUpdate.exe

Filesize
153KB

MD5
a00c0d77144d4e845e5f3587d9c7b20e

SHA1
628ee41efd7cf32a9c6d6aa57a5a6b1ade0757a4

SHA256
69cf88eaeef3d908c41e265df8fb29df59a7a631fd909e1eb039f72af18aefa3

SHA512
38441644a3b2a7c7469ee8f4bd36d02219386be308d0e5529ab2280eb1e4f57fab033d08b83abd1860843c74edb89f60ed8abc4b22161976818bb90174906753

Download Submit
memory/436-26-0x0000000000270000-0x0000000000280000-memory.dmp

Filesize
64KB

Download
memory/536-50-0x0000000000F00000-0x0000000000F64000-memory.dmp

Filesize
400KB

Download
memory/2120-43-0x0000000000F00000-0x0000000000F64000-memory.dmp

Filesize
400KB

Download
memory/2120-45-0x0000000000F00000-0x0000000000F64000-memory.dmp

Filesize
400KB

Download
memory/4784-0-0x00007FFA9E520000-0x00007FFA9E5ED000-memory.dmp

Filesize
820KB

Download
memory/4784-1-0x00007FFA9E520000-0x00007FFA9E5ED000-memory.dmp

Filesize
820KB

Download
memory/4784-9-0x0000027E20660000-0x0000027E20682000-memory.dmp

Filesize
136KB

Download
memory/4784-14-0x00007FFA9E520000-0x00007FFA9E5ED000-memory.dmp

Filesize
820KB

Download
memory/5084-47-0x0000000000F00000-0x0000000000F64000-memory.dmp

Filesize
400KB

Download

Analysis

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