dfb3072c0a72d4db958183d228b9639b613b0f369c9dba577be584b4662ad456

Analysis

max time kernel
141s
max time network
127s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 13:46

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General

Target

1a7892806c68dc27d6fc935ba056475e.exe
Size

59KB
MD5

1a7892806c68dc27d6fc935ba056475e
SHA1

270c8733082034c386a918d1b4112218fc147ab3
SHA256

dfb3072c0a72d4db958183d228b9639b613b0f369c9dba577be584b4662ad456
SHA512

4c513ad2c23a02a2483377e39746bd086d90ab4c7f26a181ef8c0b3006c03dcaaad1ee2ee18ae892ac4d90041212ca995dd996ef773c07a0c2e3f6d27d942af3
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z39:SKcR4mjD9r823FHKcR4mjD9r823FM

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
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
behavioral1/memory/824-0-0x0000000000F00000-0x0000000000F17000-memory.dmp	upx
behavioral1/memory/824-8-0x0000000000F00000-0x0000000000F17000-memory.dmp	upx
behavioral1/files/0x000c00000001492c-7.dat	upx
behavioral1/memory/2280-12-0x00000000013C0000-0x00000000013D7000-memory.dmp	upx
behavioral1/files/0x0008000000012270-14.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"	1a7892806c68dc27d6fc935ba056475e.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	1a7892806c68dc27d6fc935ba056475e.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	824	1a7892806c68dc27d6fc935ba056475e.exe
Token: SeDebugPrivilege	2280	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 2280	824	1a7892806c68dc27d6fc935ba056475e.exe	28
PID 824 wrote to memory of 2280	824	1a7892806c68dc27d6fc935ba056475e.exe	28
PID 824 wrote to memory of 2280	824	1a7892806c68dc27d6fc935ba056475e.exe	28
PID 824 wrote to memory of 2280	824	1a7892806c68dc27d6fc935ba056475e.exe	28

C:\Users\Admin\AppData\Local\Temp\1a7892806c68dc27d6fc935ba056475e.exe
"C:\Users\Admin\AppData\Local\Temp\1a7892806c68dc27d6fc935ba056475e.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:824
- 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

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\FsDSXzImnzZffHJ.exe

Filesize
59KB

MD5
b659f7aba97ceb6eec3e7f29a053d5d1

SHA1
9180373355ff904a54ad20b63e6a39ad16f583b8

SHA256
c5124b080b673e8bdf7ffc4822a89056f4788b585c2630e71e57dd780bd58fb0

SHA512
71787e84ded0a6b845cfbbcd7c14b85d2df6ecc2389fd2e3ee5b37886eb282ba50caa52800f0996d3e4bdb2d95b22be44f0ed434cdc0e5b47847db281830ca87

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/824-0-0x0000000000F00000-0x0000000000F17000-memory.dmp

Filesize
92KB

Download
memory/824-8-0x0000000000F00000-0x0000000000F17000-memory.dmp

Filesize
92KB

Download
memory/824-11-0x00000000001B0000-0x00000000001C7000-memory.dmp

Filesize
92KB

Download
memory/2280-12-0x00000000013C0000-0x00000000013D7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads