05c602cf7bd2e8b19f40b891e08e16bfceb99fd3db3b6bb59506c2b366891ff2

Analysis

max time kernel
149s
max time network
130s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
07-01-2024 23:52

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General

Target

4a1a9518eccb04ac641890743df25d72.exe
Size

32KB
MD5

4a1a9518eccb04ac641890743df25d72
SHA1

88081b5fcd981aa581c2bb36229478582eabffd7
SHA256

05c602cf7bd2e8b19f40b891e08e16bfceb99fd3db3b6bb59506c2b366891ff2
SHA512

8ca7cf06d237f2510ba2d98385a884c5059ba26f6312f156b43235f2726bf622061619e7654e63b3a44a4f428235de0acedfc59f5bd596d78229cc7bacfa634a
SSDEEP

768:XkX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIoHq:6KcR4mjD9r827

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2436	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 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1904-0-0x0000000000E70000-0x0000000000E87000-memory.dmp	upx
behavioral1/memory/1904-9-0x0000000000E70000-0x0000000000E87000-memory.dmp	upx
behavioral1/memory/2436-12-0x0000000001300000-0x0000000001317000-memory.dmp	upx
behavioral1/files/0x000d0000000122ec-11.dat	upx
behavioral1/memory/1904-5-0x0000000000070000-0x0000000000087000-memory.dmp	upx
behavioral1/files/0x000a000000012255-13.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"	4a1a9518eccb04ac641890743df25d72.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	4a1a9518eccb04ac641890743df25d72.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1904	4a1a9518eccb04ac641890743df25d72.exe
Token: SeDebugPrivilege	2436	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1904 wrote to memory of 2436	1904	4a1a9518eccb04ac641890743df25d72.exe	28
PID 1904 wrote to memory of 2436	1904	4a1a9518eccb04ac641890743df25d72.exe	28
PID 1904 wrote to memory of 2436	1904	4a1a9518eccb04ac641890743df25d72.exe	28
PID 1904 wrote to memory of 2436	1904	4a1a9518eccb04ac641890743df25d72.exe	28

C:\Users\Admin\AppData\Local\Temp\4a1a9518eccb04ac641890743df25d72.exe
"C:\Users\Admin\AppData\Local\Temp\4a1a9518eccb04ac641890743df25d72.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1904
- 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:2436

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\0YxX4UfiAb5so6T.exe

Filesize
32KB

MD5
2c79b668a5802c085f3cfc15a75628c8

SHA1
7343367960efd8e910e6a84bb3d013b318797979

SHA256
2c4bc9ab96b3b7091dff401549ad83bb1685401537d4367f6e2e7d8f1da36a98

SHA512
33d4c65fa91fc21466da750c1723c157128e9dc58727529c4f050067bd056565d425f5c08721e0d68042b196ed26bdba53aa00b91faf6d51d1e1feda5a8c8caa

Download Submit
C:\Windows\CTS.exe

Filesize
32KB

MD5
70c2b7b30042b4ef55eb264151a77fe7

SHA1
d07aeeaa1a0fe8bb5d4f0bcd6832189716e1749a

SHA256
fc44d7a036bb45e7299b6ed991cb7f83ea56130975b35f623719f16b06876120

SHA512
5146de549de6af31299c716958d86c52657d138e95b05634745b1d80d992f3c265c4f97a771148a3aa2538029e4d704f47f484c15b1b3fc1def7bb06e07cfa71

Download Submit
memory/1904-0-0x0000000000E70000-0x0000000000E87000-memory.dmp

Filesize
92KB

Download
memory/1904-9-0x0000000000E70000-0x0000000000E87000-memory.dmp

Filesize
92KB

Download
memory/1904-5-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/2436-12-0x0000000001300000-0x0000000001317000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads