5e38f9d9695745ac128e898ae7bfb59675a0c031bfc1637354d192b9e2840c2d

Analysis

max time kernel
142s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
13/03/2024, 17:23

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General

Target

c6735fec5076fe37fc3cf6090b449ed6.exe
Size

83KB
MD5

c6735fec5076fe37fc3cf6090b449ed6
SHA1

c8be76b9130207855a6cf8dcd08d1b402c11918b
SHA256

5e38f9d9695745ac128e898ae7bfb59675a0c031bfc1637354d192b9e2840c2d
SHA512

5d7ec4a9c049cb8aa4a3740cd0aa7f8a9c1faead4a433fcb1b41583c03f95b52f030a6afc760401601e94ce8c9c16fd3468003257b82c55e6f1b5bd0fd14bd48
SSDEEP

768:XCNK2cNW0QbRsWjcd+6yBFLqJ4Z8qx70RM8/O/B2ZR1RGn8NIoGLLRNeoPZ:UcNjQlsWjcd+xzl7SM+Gn8255Neoh

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
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/988-0-0x0000000000CD0000-0x0000000000CE9000-memory.dmp	upx
behavioral2/files/0x000800000002320c-7.dat	upx
behavioral2/memory/1740-9-0x00000000004B0000-0x00000000004C9000-memory.dmp	upx
behavioral2/memory/988-8-0x0000000000CD0000-0x0000000000CE9000-memory.dmp	upx
behavioral2/files/0x00020000000227b4-12.dat	upx
behavioral2/files/0x000700000001e59e-30.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"	c6735fec5076fe37fc3cf6090b449ed6.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	c6735fec5076fe37fc3cf6090b449ed6.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	988	c6735fec5076fe37fc3cf6090b449ed6.exe
Token: SeDebugPrivilege	1740	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 988 wrote to memory of 1740	988	c6735fec5076fe37fc3cf6090b449ed6.exe	89
PID 988 wrote to memory of 1740	988	c6735fec5076fe37fc3cf6090b449ed6.exe	89
PID 988 wrote to memory of 1740	988	c6735fec5076fe37fc3cf6090b449ed6.exe	89

C:\Users\Admin\AppData\Local\Temp\c6735fec5076fe37fc3cf6090b449ed6.exe
"C:\Users\Admin\AppData\Local\Temp\c6735fec5076fe37fc3cf6090b449ed6.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:988
- 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

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
405KB

MD5
b7fb60655be143314313a2c98c72cfc8

SHA1
8c1cecc1526e6392883eb496adeb20ec0eae5346

SHA256
c47c63d773957ab07f59cc523c6f791971928500aca35b7a6885ce4306351950

SHA512
2263adf46ce856574d45ac6ede0fb1f688501252019947d7108d28d04f03f0818b4dec63ee744ed7d4cd832c8c005d4bd6233711deb66e6067cfd41d8da90042

Download Submit
C:\Users\Admin\AppData\Local\Temp\hJforn7Q3oVaJFa.exe

Filesize
83KB

MD5
ae39703d44b0744c51f95cf098578e4b

SHA1
69906cb2ac7a2a70a3c9bcb416336496e4ad8450

SHA256
8eb800c6538e5ddb13e4d4f52d9b1c979449ff4705b4a9fb8d311c84327e2e04

SHA512
ac4c52e5ed11282180702a5730a108740c3fd66523b906bfb9b0d817f8ebfff323ee7a31c9e96e7c86480dd12d35bfa19b8bddcbf1126f05396d8300f05c03ff

Download Submit
C:\Windows\CTS.exe

Filesize
82KB

MD5
546ffd2b72777e6a9e350780b79f99d4

SHA1
a620be74a2f432656e38e51cd02fbdc3e3b312c2

SHA256
c651b378896fad56ddeb1fec2c578a822bbb13269ec881f9420bbf47c9fbfbb5

SHA512
57d49f830f9774ef0a4b6d026211360ea4ebcc6b236b72107401284559c7c589733bccc8af10c5a0cee5b97880d24a4e9954beb81887b1b124f8a42cca456fac

Download Submit
memory/988-0-0x0000000000CD0000-0x0000000000CE9000-memory.dmp

Filesize
100KB

Download
memory/988-8-0x0000000000CD0000-0x0000000000CE9000-memory.dmp

Filesize
100KB

Download
memory/1740-9-0x00000000004B0000-0x00000000004C9000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads