338a272863708b714851e2dcd978786176006773c6216c3a667a081098f56d98

Analysis

max time kernel
141s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/12/2023, 04:51

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General

Target

55abb68eda351209c510f79dc35670f8.exe
Size

29KB
MD5

55abb68eda351209c510f79dc35670f8
SHA1

d40be2abae6a77f6f15a99f3cd075bb9150025ef
SHA256

338a272863708b714851e2dcd978786176006773c6216c3a667a081098f56d98
SHA512

7b4280fe702eba289a7582dd365fcf79868806b61f05764b0517810207424d0713ace89e1accf0da4fa3f15e54da2f6e02170465f6f3633db241d65f54d92c72
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFd:SKcR4mjD9r823Fd

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2404	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/2228-0-0x0000000000220000-0x0000000000237000-memory.dmp	upx
behavioral1/memory/2228-9-0x0000000000220000-0x0000000000237000-memory.dmp	upx
behavioral1/memory/2404-12-0x0000000001330000-0x0000000001347000-memory.dmp	upx
behavioral1/files/0x000c000000016c1a-11.dat	upx
behavioral1/memory/2228-5-0x0000000000070000-0x0000000000087000-memory.dmp	upx
behavioral1/files/0x0009000000012262-14.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"	55abb68eda351209c510f79dc35670f8.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	55abb68eda351209c510f79dc35670f8.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	55abb68eda351209c510f79dc35670f8.exe
Token: SeDebugPrivilege	2404	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2404	2228	55abb68eda351209c510f79dc35670f8.exe	28
PID 2228 wrote to memory of 2404	2228	55abb68eda351209c510f79dc35670f8.exe	28
PID 2228 wrote to memory of 2404	2228	55abb68eda351209c510f79dc35670f8.exe	28
PID 2228 wrote to memory of 2404	2228	55abb68eda351209c510f79dc35670f8.exe	28

C:\Users\Admin\AppData\Local\Temp\55abb68eda351209c510f79dc35670f8.exe
"C:\Users\Admin\AppData\Local\Temp\55abb68eda351209c510f79dc35670f8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228
- 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:2404

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\z06Dbrlzp8tuSml.exe

Filesize
29KB

MD5
d52ddf56329cf184800d675fdbddc132

SHA1
f4d3eefdf2bb09df7bf1d6890d3bc599901c00c9

SHA256
c50716b900e5e665be0d465281607e64d722e6fcbd0cfae25ad3d5b8fed67454

SHA512
818cf82a07b900d8e81626e9c73bfc173cc133b7b44100b5b6ab574e08408f8e953e03beecb74b5209e71303bc9e31706e38651f5188c71137ec76ed8c4a841e

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2228-0-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2228-9-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2228-5-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/2404-12-0x0000000001330000-0x0000000001347000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads