246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070

General

Target

246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exe
Size

266KB
MD5

1f9b41e5897be069ac12e8ed31bbdff0
SHA1

a2a25321ae0795f7c153f864fd1129ed7c04463d
SHA256

246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070
SHA512

167532565ce8158d46beafc461c8f87a394fc6c18af93f9999da5a4069130af12fee1b0b5932bba2e05328e450226398e5be452c9b853a91cce0afc53949434a
SSDEEP

6144:oZb2qa7hSrXqp2Rwsg6e9Q7OrM/ZVkLzL:ooq0hSbqcwtIWMxVkz

Score

9^/10

persistence spyware stealer upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4904-1-0x0000000000490000-0x00000000004A8000-memory.dmp	UPX
C:\Windows\CTS.exe	UPX
behavioral2/memory/4904-8-0x0000000000490000-0x00000000004A8000-memory.dmp	UPX
behavioral2/memory/5052-9-0x0000000000A00000-0x0000000000A18000-memory.dmp	UPX
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml	UPX

Executes dropped EXE 1 IoCs

Processes:

CTS.exe

pid process

5052 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

pid	process
5052	CTS.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4904-1-0x0000000000490000-0x00000000004A8000-memory.dmp	upx
C:\Windows\CTS.exe	upx
behavioral2/memory/4904-8-0x0000000000490000-0x00000000004A8000-memory.dmp	upx
behavioral2/memory/5052-9-0x0000000000A00000-0x0000000000A18000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exeCTS.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.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

Processes:

246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exeCTS.exe

description	ioc	process
File created	C:\Windows\CTS.exe	246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exeCTS.exe

description	pid	process
Token: SeDebugPrivilege	4904	246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exe
Token: SeDebugPrivilege	5052	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exe

description	pid	process	target process
PID 4904 wrote to memory of 5052	4904	246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exe	CTS.exe
PID 4904 wrote to memory of 5052	4904	246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exe	CTS.exe
PID 4904 wrote to memory of 5052	4904	246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exe	CTS.exe

C:\Users\Admin\AppData\Local\Temp\246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exe
"C:\Users\Admin\AppData\Local\Temp\246333010e12b606190c247d03270fedd1ae76186fe14b0172a9fe15e6d50070.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4904
- 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:5052

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
402KB

MD5
2f3972aab6acb8a1dac66a61b8acd92e

SHA1
a7b180028ea1b45a89c9f62778349d63f3d43b4f

SHA256
01c8966b39dfb16c62c7495886f508d1660b4915555be76cb34cd35064f20f2a

SHA512
93578341378bbb57727be3cf0351c7f19c6c031a61a0d990e3fec2d2acabaabffdec729f5a34dbef7263e5526446ffbe467d487990d273a0354cf57cfb4af5f3

Download Submit
C:\Users\Admin\AppData\Local\Temp\MWAaiv0bkEuQdhd.exe

Filesize
266KB

MD5
d8aad24e449f1aff7d63b3c716a56874

SHA1
84dfdcb95447e90567d804fdfacb44f208e82d19

SHA256
f60f23f06c8dd3cbb33512cc6b8189733049a3f996be5584c225a3fad93af3a3

SHA512
2b9537875d9a86dc1a399730d6886831d55b324d3393b42f54283773b9ef57a38707b898e02fc1b4c5f6560c5f72b7007eee406f9bcd4122256c36907ca2a511

Download Submit
C:\Windows\CTS.exe

Filesize
80KB

MD5
b596af3e5821c709a22c661155600a7e

SHA1
9c1563c6c6374f63d8cf92098a5780d614ff7759

SHA256
62ca133a4dac1f07c692b02092b18fa72fffb435be0e52a89e4e4f22c9f53624

SHA512
ddbe2fcad0ace16e2c92a4ca3e499c1639bbc6b40bf8c9549cad133ef7e1f6431ea90f7be27cf7de393328564715ec38e2a829adc7e7b64d69aa90eed99e9baf

Download Submit
memory/4904-1-0x0000000000490000-0x00000000004A8000-memory.dmp

Filesize
96KB

Download
memory/4904-8-0x0000000000490000-0x00000000004A8000-memory.dmp

Filesize
96KB

Download
memory/5052-9-0x0000000000A00000-0x0000000000A18000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads