cf4d29a1accccb02ed89a2d45b53534b54515f7c9f1ac90d992e090358481c50

Analysis

max time kernel
150s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 05:18

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General

Target

0fd1660a36d3cff5d05243532e4b3554.exe
Size

30KB
MD5

0fd1660a36d3cff5d05243532e4b3554
SHA1

27291e2719f55d26b320c66635096eb82ecc3f9c
SHA256

cf4d29a1accccb02ed89a2d45b53534b54515f7c9f1ac90d992e090358481c50
SHA512

3f8e38e92c661f1ea7ca4a985a7d7bacd09d1fdd5f1f35231b45595f9315137577cb561e8cd65943024269e614cf2e48d32caa85a6161b7616c7d3119f38d135
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFtV:SKcR4mjD9r823FH

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4036	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/2208-0-0x0000000000D60000-0x0000000000D77000-memory.dmp	upx
behavioral2/files/0x0007000000023222-6.dat	upx
behavioral2/memory/2208-7-0x0000000000D60000-0x0000000000D77000-memory.dmp	upx
behavioral2/memory/4036-9-0x00000000004E0000-0x00000000004F7000-memory.dmp	upx
behavioral2/files/0x000300000001e713-12.dat	upx
behavioral2/files/0x00050000000006e9-29.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"	0fd1660a36d3cff5d05243532e4b3554.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	0fd1660a36d3cff5d05243532e4b3554.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2208	0fd1660a36d3cff5d05243532e4b3554.exe
Token: SeDebugPrivilege	4036	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 4036	2208	0fd1660a36d3cff5d05243532e4b3554.exe	88
PID 2208 wrote to memory of 4036	2208	0fd1660a36d3cff5d05243532e4b3554.exe	88
PID 2208 wrote to memory of 4036	2208	0fd1660a36d3cff5d05243532e4b3554.exe	88

C:\Users\Admin\AppData\Local\Temp\0fd1660a36d3cff5d05243532e4b3554.exe
"C:\Users\Admin\AppData\Local\Temp\0fd1660a36d3cff5d05243532e4b3554.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2208
- 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:4036

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
37c3d4fd42d88510f230326e8f2915d0

SHA1
d63c95661190cd0e568b81d96c8528b19fdd8e93

SHA256
4963914026629ff4553bd7d7ad6d3b3d1f36be2638e3e66a69d843afb7b0e92b

SHA512
21263d949ce1db66387825abd78f7f48a32c9e2a2a2c342cf843012f83a8a2fb54d610cc25c4ad66fc027e75ffef70caa7f80ff99cc998131cec91d63fb80fa5

Download Submit
C:\Users\Admin\AppData\Local\Temp\OiNOv5LHRCVH9lv.exe

Filesize
30KB

MD5
d01d55ea3bd8bf1e2b0dea1dc5d723ef

SHA1
a6ac05a6c5c8db4227f88889dcf146d1c2aaa834

SHA256
5477b6872700b6f77e6fcf332780ef6a5dd047490b892b519fec78a0d5fc87ad

SHA512
da1c10411fe8fd5d552d2b65344adcc9135d2f66beb6e54883e7fe1ad88cbda88eae69b8b0b66df65e9398eb065a2ef73a3cdf6a899bec5afc4104f741d67877

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/2208-0-0x0000000000D60000-0x0000000000D77000-memory.dmp

Filesize
92KB

Download
memory/2208-7-0x0000000000D60000-0x0000000000D77000-memory.dmp

Filesize
92KB

Download
memory/4036-9-0x00000000004E0000-0x00000000004F7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads