8c4840972d3fa611898c849098e8420af9599ddbc8ac3708419613b710388d9a

Analysis

max time kernel
141s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27/01/2024, 13:54

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General

Target

7a6cba1a259be59b2a986e31375d2a73.exe
Size

29KB
MD5

7a6cba1a259be59b2a986e31375d2a73
SHA1

b6dd516cb9114789fa3f5e025623717597fcb6c9
SHA256

8c4840972d3fa611898c849098e8420af9599ddbc8ac3708419613b710388d9a
SHA512

f75d9fa57dfad9016d28bcb0594c1e5374685a3019cc7c0dc989433b4a490ceb3acba7d39f95d2fa0519845c5ce4bb61930d1d87a31a375392c267f0e2d62edd
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFMl:SKcR4mjD9r823FA

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3016	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/2484-0-0x00000000013E0000-0x00000000013F7000-memory.dmp	upx
behavioral1/files/0x0008000000012284-11.dat	upx
behavioral1/memory/3016-12-0x0000000000C20000-0x0000000000C37000-memory.dmp	upx
behavioral1/memory/2484-8-0x00000000013E0000-0x00000000013F7000-memory.dmp	upx
behavioral1/files/0x000c000000012252-14.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"	7a6cba1a259be59b2a986e31375d2a73.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	7a6cba1a259be59b2a986e31375d2a73.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2484	7a6cba1a259be59b2a986e31375d2a73.exe
Token: SeDebugPrivilege	3016	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2484 wrote to memory of 3016	2484	7a6cba1a259be59b2a986e31375d2a73.exe	28
PID 2484 wrote to memory of 3016	2484	7a6cba1a259be59b2a986e31375d2a73.exe	28
PID 2484 wrote to memory of 3016	2484	7a6cba1a259be59b2a986e31375d2a73.exe	28
PID 2484 wrote to memory of 3016	2484	7a6cba1a259be59b2a986e31375d2a73.exe	28

C:\Users\Admin\AppData\Local\Temp\7a6cba1a259be59b2a986e31375d2a73.exe
"C:\Users\Admin\AppData\Local\Temp\7a6cba1a259be59b2a986e31375d2a73.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2484
- 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:3016

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\mCcrlva1XUTvbg7.exe

Filesize
29KB

MD5
fc20680659eaf7ac9c8c104eb8372f6d

SHA1
aa22894b714d82cc9ce3efe09fdb0b925b147c29

SHA256
459e87bf9b5e41dc986bef5bede50f012b897a3355fe0699e90bd32d49874fdf

SHA512
ec749ca6a3312e2a066cb4f68c2197965ea082ea459b9703f9e6bef77253261ed75a6ea6323adf2f64567870bc9bbeeff850eb66fc569c5c914d8bf3c3fb700b

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2484-0-0x00000000013E0000-0x00000000013F7000-memory.dmp

Filesize
92KB

Download
memory/2484-9-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/2484-8-0x00000000013E0000-0x00000000013F7000-memory.dmp

Filesize
92KB

Download
memory/3016-12-0x0000000000C20000-0x0000000000C37000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads