59d6a84f9552f700df325a76326612be8912841566d6df07275eb8a1ef3fe4d2

Analysis

max time kernel
143s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 15:10

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General

Target

7807e29aa6b7152d32c52f668d950683.exe
Size

46KB
MD5

7807e29aa6b7152d32c52f668d950683
SHA1

7df33f0990759097ba9e11cef2f949d94723c685
SHA256

59d6a84f9552f700df325a76326612be8912841566d6df07275eb8a1ef3fe4d2
SHA512

9ee85ca90af0b9fa137cf001aac46c7e69d5a46a16c9bf43f7a4b6cd5d0c511f99cdea0512cd6db06fa931da4bfc8a7f98c5d12a9f25c82d4a132e162bc75701
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFbIF/aD5MTf10XCbSYO7:SKcR4mjD9r823F8sDcqyhm3

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1052	uZfs30klMdqpj0L.exe
1740	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
behavioral2/memory/4860-0-0x00000000005C0000-0x00000000005D7000-memory.dmp	upx
behavioral2/memory/4860-9-0x00000000005C0000-0x00000000005D7000-memory.dmp	upx
behavioral2/files/0x0007000000023200-8.dat	upx
behavioral2/memory/1740-7-0x0000000000C30000-0x0000000000C47000-memory.dmp	upx
behavioral2/files/0x0005000000022705-13.dat	upx
behavioral2/memory/1740-31-0x0000000000C30000-0x0000000000C47000-memory.dmp	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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	7807e29aa6b7152d32c52f668d950683.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	7807e29aa6b7152d32c52f668d950683.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4860	7807e29aa6b7152d32c52f668d950683.exe
Token: SeDebugPrivilege	1740	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 1052	4860	7807e29aa6b7152d32c52f668d950683.exe	91
PID 4860 wrote to memory of 1052	4860	7807e29aa6b7152d32c52f668d950683.exe	91
PID 4860 wrote to memory of 1740	4860	7807e29aa6b7152d32c52f668d950683.exe	89
PID 4860 wrote to memory of 1740	4860	7807e29aa6b7152d32c52f668d950683.exe	89
PID 4860 wrote to memory of 1740	4860	7807e29aa6b7152d32c52f668d950683.exe	89

C:\Users\Admin\AppData\Local\Temp\7807e29aa6b7152d32c52f668d950683.exe
"C:\Users\Admin\AppData\Local\Temp\7807e29aa6b7152d32c52f668d950683.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4860
- 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:1740
- C:\Users\Admin\AppData\Local\Temp\uZfs30klMdqpj0L.exe
  C:\Users\Admin\AppData\Local\Temp\uZfs30klMdqpj0L.exe
  2⤵
  - Executes dropped EXE
  PID:1052

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

Filesize
352KB

MD5
78ee63ee3ea60c8fc8f325b629f02a51

SHA1
b630e90dafdb1e9445c9606e04ea1b7a4d52d81f

SHA256
7880b72b416fcd95709b0d261bfe937d6271933f18cbc375608cec6d867b0ca0

SHA512
1e991e0b3714d18245532bd6e1071698f85723ff80add896b620d407d650c67ccca827152f42fff58f6836185a63fcf2286c0ad83861de2ff96ae76c7c856c38

Download Submit
C:\Users\Admin\AppData\Local\Temp\uZfs30klMdqpj0L.exe

Filesize
16KB

MD5
95c9a037d3b01a21275aa6cc73b122a2

SHA1
c19ed8afc95b91d0cc6bc075047de30eae015386

SHA256
1d5edcbae3258efb07cc57ba8d7cd1ebe2eb5106ef1a894b787ed2857952c523

SHA512
761bb76261712a597f610e3162fa1514d2f56d69d03d1b76b51c6b2a7b0c88bbd385b7dc849c6913f7d861fb3aed8551f26f640d90b621e8629abe2e4bfb6160

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1740-7-0x0000000000C30000-0x0000000000C47000-memory.dmp

Filesize
92KB

Download
memory/1740-31-0x0000000000C30000-0x0000000000C47000-memory.dmp

Filesize
92KB

Download
memory/4860-0-0x00000000005C0000-0x00000000005D7000-memory.dmp

Filesize
92KB

Download
memory/4860-9-0x00000000005C0000-0x00000000005D7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads