5505a559b57b9b34399753df957076f928ebe746400e2331dc13e57b75210655

Analysis

max time kernel
148s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2024 16:04

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General

Target

3e6a05dd133df1a071be96b05d1a2516.exe
Size

53KB
MD5

3e6a05dd133df1a071be96b05d1a2516
SHA1

2ed34aef5102e9d33c08ebc6f62647c974ec2921
SHA256

5505a559b57b9b34399753df957076f928ebe746400e2331dc13e57b75210655
SHA512

eadbab727e32249cd106fe762b597ce93d72e5bb1786c0eef30e829cc2f60e910a07d28918ce8f35b92c7e75c0e6a53f7c40d7195417d059c25af192c6eec543
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IwkjZHj5EvfB1tmhj2:s9Z3KcR4mjD9r8226+lkxmTtmhjsBpf1

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1720	AWercZltQcijScu.exe
2280	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
behavioral2/memory/5112-0-0x0000000000820000-0x0000000000837000-memory.dmp	upx
behavioral2/memory/2280-9-0x0000000000730000-0x0000000000747000-memory.dmp	upx
behavioral2/memory/5112-8-0x0000000000820000-0x0000000000837000-memory.dmp	upx
behavioral2/files/0x0003000000022778-13.dat	upx
behavioral2/files/0x00080000000231f9-6.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"	3e6a05dd133df1a071be96b05d1a2516.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	3e6a05dd133df1a071be96b05d1a2516.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5112	3e6a05dd133df1a071be96b05d1a2516.exe
Token: SeDebugPrivilege	2280	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 1720	5112	3e6a05dd133df1a071be96b05d1a2516.exe	21
PID 5112 wrote to memory of 1720	5112	3e6a05dd133df1a071be96b05d1a2516.exe	21
PID 5112 wrote to memory of 1720	5112	3e6a05dd133df1a071be96b05d1a2516.exe	21
PID 5112 wrote to memory of 2280	5112	3e6a05dd133df1a071be96b05d1a2516.exe	18
PID 5112 wrote to memory of 2280	5112	3e6a05dd133df1a071be96b05d1a2516.exe	18
PID 5112 wrote to memory of 2280	5112	3e6a05dd133df1a071be96b05d1a2516.exe	18

C:\Users\Admin\AppData\Local\Temp\3e6a05dd133df1a071be96b05d1a2516.exe
"C:\Users\Admin\AppData\Local\Temp\3e6a05dd133df1a071be96b05d1a2516.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5112
- 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:2280
- C:\Users\Admin\AppData\Local\Temp\AWercZltQcijScu.exe
  C:\Users\Admin\AppData\Local\Temp\AWercZltQcijScu.exe
  2⤵
  - Executes dropped EXE
  PID:1720

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
359KB

MD5
552a6048f36893efdd0e6bd6c742c0d1

SHA1
bb4092ac64c58ef7c372c4ad5438dfc93ee151c6

SHA256
7ffea773b722624d48b97b451aae7ae0376c168f16546a372e536b12808b9b3b

SHA512
7d32ba77f1a11f6d42107a7ecf06b648d9a4b1685d8e09a702c94c618613c16eeea9ca9e62fffd43ee651106ff211fe52a8b4ed8ab56c0020cfa33455c1450fa

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

Filesize
17KB

MD5
5f1e44aae228232cb10455f2da41edec

SHA1
5993cbcba0bcf6614631283be9cecf0c4a364488

SHA256
a9323ed6cf8ad389f185c92861dd73fa466d343fcbf318f9e77072219cf52ade

SHA512
7cc859fae11a2317d47f81c87b2d14c7d9d800c73a6cd26cea2f9e36011382a214821f950cd914232eeb455bf54e8db98ae84768b096e8608fb5f78181057dd9

Download Submit
C:\Windows\CTS.exe

Filesize
36KB

MD5
d23b958b292229b9c4449af4799e5199

SHA1
4edca4f5650a46b49f38cdc3da76df63be05d00a

SHA256
590c7a8236b0a29ae55e001361e3365bcaaeefe732d6061da12175343026e50a

SHA512
1e758b59e2b89c8313027d609949eeadc4a40ebe9c27de72bf16be4f0a5e8dafceb787d92e1324f217059bd83363368718d4bbf88841fbb50cd11d3113177c56

Download Submit
memory/2280-9-0x0000000000730000-0x0000000000747000-memory.dmp

Filesize
92KB

Download
memory/5112-0-0x0000000000820000-0x0000000000837000-memory.dmp

Filesize
92KB

Download
memory/5112-8-0x0000000000820000-0x0000000000837000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads