c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66

Analysis

max time kernel
171s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 14:11

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General

Target

c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe
Size

99KB
MD5

a729f97edc50606cf5a5bdc33d1a0d5f
SHA1

586df8882aaf1158deca467709f68b0ccf61a3a9
SHA256

c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66
SHA512

4c846560d39d8fb81bd80ac102f3f720122abfcb92badf2fb1434bc675c379167f8755a0d4f6881859f3c219a931fbc96587c17275e6375d049d4c0f31a17b6d
SSDEEP

3072:FYR8aLTicZUIp2N/P696++AsCV7yPM0yx:e8aQd6sHAsCV7yPM0yx

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Windows\\system32\\explorer.exe"	c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\explorer.exe	c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Explorer\ExplorerStartupLog.etl	explorer.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	explorer.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer	explorer.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\ExplorerStartupTraceRecorded = "1"	explorer.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{470C0EBD-5D73-4D58-9CED-E91E22E23282} {000214E4-0000-0000-C000-000000000046} 0xFFFF = 01000000000000006037dde82703d901	explorer.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Shell Extensions\Cached\{23170F69-40C1-278A-1000-000100020000} {000214E4-0000-0000-C000-000000000046} 0xFFFF = 01000000000000005e99dfe82703d901	explorer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1548	c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1548 wrote to memory of 3448	1548	c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe	86
PID 1548 wrote to memory of 3448	1548	c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe	86
PID 1548 wrote to memory of 3448	1548	c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe	86

C:\Users\Admin\AppData\Local\Temp\c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe
"C:\Users\Admin\AppData\Local\Temp\c53659fefe8f4fcb9252263972af188317daa9031c41b2e60e42e3dea68ebd66.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\C53659~1.EXE > nul
  2⤵
  PID:3448

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Modifies data under HKEY_USERS
PID:5036

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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