12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27

General

Target

12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe
Size

205KB
MD5

8f4b355a36f67085510a38e53828707e
SHA1

dd7f0bc00aade052dab157a1684c8bdb469484cf
SHA256

12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27
SHA512

ca22aa22ce21f3bc3f23e4f28c3e89f8daa01f07ce54f5c38c367ea5ba2a419946ad2f4679f98b85007701c74cbbb96905916f4128602da5b73ca7c85ac8e17c
SSDEEP

6144:/MAoVN2uNNLVPyxkSHlvoPT+ydNWnZh/WUoSpies4R0y:0AoKPHdmzdNoz/WVSw0R0y

Score

9^/10

Malware Config

Signatures

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2320-0-0x0000000000920000-0x0000000000938000-memory.dmp	UPX
behavioral1/memory/2320-8-0x0000000000920000-0x0000000000938000-memory.dmp	UPX
behavioral1/files/0x000d000000012331-10.dat	UPX
behavioral1/memory/3028-12-0x0000000000AF0000-0x0000000000B08000-memory.dmp	UPX
behavioral1/files/0x000b00000001224d-14.dat	UPX

Executes dropped EXE 1 IoCs

pid	Process
3028	CTS.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2320-0-0x0000000000920000-0x0000000000938000-memory.dmp	upx
behavioral1/memory/2320-8-0x0000000000920000-0x0000000000938000-memory.dmp	upx
behavioral1/files/0x000d000000012331-10.dat	upx
behavioral1/memory/3028-12-0x0000000000AF0000-0x0000000000B08000-memory.dmp	upx
behavioral1/files/0x000b00000001224d-14.dat	upx

Adds Run key to start application 2 TTPs 2 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\CTS = "C:\\Windows\\CTS.exe"	12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe
Token: SeDebugPrivilege	3028	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 3028	2320	12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe	28
PID 2320 wrote to memory of 3028	2320	12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe	28
PID 2320 wrote to memory of 3028	2320	12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe	28
PID 2320 wrote to memory of 3028	2320	12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe	28

C:\Users\Admin\AppData\Local\Temp\12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe
"C:\Users\Admin\AppData\Local\Temp\12bbdee33a1c001fb5054778083203457820f5a6ac3aa33626b56be21afb2c27.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:3028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\k9pYtKI9E2qzXfW.exe

Filesize
205KB

MD5
b731a9606de85d2e961f69cec8967f99

SHA1
db83318df7e8a9946ee50cd05c3506bbb1f3c938

SHA256
1b0105aa41e5838b3e3114bf060a3475aaf80fcd8d1d3e5f2d1d0d13d1618b1e

SHA512
e0176a43f60fea05e58ffc0f8dde0267a5a1b940c8dbfcc42474d4cfa5c77b11881e92166c5183a970a76dc4f53e3fbe8973955b4f662e7b9cbe48e22cb7444c

Download Submit
C:\Windows\CTS.exe

Filesize
27KB

MD5
a6749b968461644db5cc0ecceffb224a

SHA1
2795aa37b8586986a34437081351cdd791749a90

SHA256
720023737d7ff700818f55612ba069a609a5ddea646bb3509b615ee3523a4ca2

SHA512
2a276816290746ed914af9cf6427aef31ce9395b8e9937090e329a8f74fb84c62d15b196e13346caa086842b3f5f549b9eb20cbf422d18c9c1b63e6342ea90b4

Download Submit
memory/2320-0-0x0000000000920000-0x0000000000938000-memory.dmp

Filesize
96KB

Download
memory/2320-8-0x0000000000920000-0x0000000000938000-memory.dmp

Filesize
96KB

Download
memory/2320-11-0x0000000000170000-0x0000000000188000-memory.dmp

Filesize
96KB

Download
memory/2320-18-0x0000000000170000-0x0000000000188000-memory.dmp

Filesize
96KB

Download
memory/3028-12-0x0000000000AF0000-0x0000000000B08000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads