cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2024, 02:46

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General

Target

cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe
Size

134KB
MD5

03513b2a2332c193f750f38c9a77e8f3
SHA1

30886b24bd5eb9285c1d45e3e89c1ac108f7992a
SHA256

cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2
SHA512

c57cb1820607e60bb957394ee15f1f6a1779acc480aa0d972259de6fc327d52d2aa91706963a479efea533cf0ee3d2d2d78489b8a4df51f3e53654d588aa663f
SSDEEP

1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOH:YfU/WF6QMauSuiWNi9eNOl0007NZIOH

Score

7^/10

persistence upx

Malware Config

Signatures

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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe

Executes dropped EXE 1 IoCs

pid	Process
1008	wuauclt.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3988-0-0x0000000000C90000-0x0000000000CB8000-memory.dmp	upx
behavioral2/files/0x000800000002341d-3.dat	upx
behavioral2/memory/1008-5-0x0000000000C50000-0x0000000000C78000-memory.dmp	upx
behavioral2/memory/3988-6-0x0000000000C90000-0x0000000000CB8000-memory.dmp	upx
behavioral2/memory/1008-7-0x0000000000C50000-0x0000000000C78000-memory.dmp	upx
behavioral2/memory/3988-8-0x0000000000C90000-0x0000000000CB8000-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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run"	cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3988 wrote to memory of 1008	3988	cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe	81
PID 3988 wrote to memory of 1008	3988	cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe	81
PID 3988 wrote to memory of 1008	3988	cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe	81
PID 3988 wrote to memory of 1364	3988	cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe	90
PID 3988 wrote to memory of 1364	3988	cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe	90
PID 3988 wrote to memory of 1364	3988	cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe	90

C:\Users\Admin\AppData\Local\Temp\cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe
"C:\Users\Admin\AppData\Local\Temp\cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3988
- C:\ProgramData\Update\wuauclt.exe
  "C:\ProgramData\Update\wuauclt.exe" /run
  2⤵
  - Executes dropped EXE
  PID:1008
- C:\windows\SysWOW64\cmd.exe
  "C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\cbd888379ea2584436c0a55e9ccf04a02f03ca02624cd3e68700fcc3a02276a2.exe" >> NUL
  2⤵
  PID:1364

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Update\wuauclt.exe

Filesize
134KB

MD5
b877f3593c6cf33f148606b48500de31

SHA1
4e12b82893c20c17e347b3e4fb949afcdc05f4a8

SHA256
745b35857b1ec0438201ae082ad6fa7856512f8aca90fd7d1958fe9aacd82575

SHA512
d111b81ef6712752f81eba67f118080f04dc1dcade2b891a84aebf0dc69c170f3010912c347e01b62f350f55ba1a305f03a4f0dde12995d181e34988d90ddd27

Download Submit
memory/1008-5-0x0000000000C50000-0x0000000000C78000-memory.dmp

Filesize
160KB

Download
memory/1008-7-0x0000000000C50000-0x0000000000C78000-memory.dmp

Filesize
160KB

Download
memory/3988-0-0x0000000000C90000-0x0000000000CB8000-memory.dmp

Filesize
160KB

Download
memory/3988-6-0x0000000000C90000-0x0000000000CB8000-memory.dmp

Filesize
160KB

Download
memory/3988-8-0x0000000000C90000-0x0000000000CB8000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads