dfbe2973db96047adb49250d975dd95aa0d87d3e9425b3b1c43b2e8a553c8d74

Analysis

max time kernel
143s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/12/2023, 23:21

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General

Target

42dff82cc488c7fac2bc7b4b5c8a8e7c.exe
Size

46KB
MD5

42dff82cc488c7fac2bc7b4b5c8a8e7c
SHA1

6c3febf2d7be454dc1d7d705a4f105fbce33f40c
SHA256

dfbe2973db96047adb49250d975dd95aa0d87d3e9425b3b1c43b2e8a553c8d74
SHA512

8648a1aab9ae28a13a46dee70e13132eb095b3814fbd3d0d027ccc7b0068bdd7a76515e4dded7fc2d905275d01d83a74fe50645f5fe971129aa42ff2df297dc8
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFwGUYIQnmZRs7ze0h3I4:SKcR4mjD9r823FwGUYIwAgzeA3xb

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4460	TiKNrHbfVf1fCzc.exe
1592	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/4972-0-0x00000000003A0000-0x00000000003B7000-memory.dmp	upx
behavioral2/memory/4972-7-0x00000000003A0000-0x00000000003B7000-memory.dmp	upx
behavioral2/files/0x000300000002268d-8.dat	upx
behavioral2/memory/1592-9-0x00000000004D0000-0x00000000004E7000-memory.dmp	upx
behavioral2/files/0x000600000002272c-13.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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	42dff82cc488c7fac2bc7b4b5c8a8e7c.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	42dff82cc488c7fac2bc7b4b5c8a8e7c.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4972	42dff82cc488c7fac2bc7b4b5c8a8e7c.exe
Token: SeDebugPrivilege	1592	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 4460	4972	42dff82cc488c7fac2bc7b4b5c8a8e7c.exe	89
PID 4972 wrote to memory of 4460	4972	42dff82cc488c7fac2bc7b4b5c8a8e7c.exe	89
PID 4972 wrote to memory of 1592	4972	42dff82cc488c7fac2bc7b4b5c8a8e7c.exe	88
PID 4972 wrote to memory of 1592	4972	42dff82cc488c7fac2bc7b4b5c8a8e7c.exe	88
PID 4972 wrote to memory of 1592	4972	42dff82cc488c7fac2bc7b4b5c8a8e7c.exe	88

C:\Users\Admin\AppData\Local\Temp\42dff82cc488c7fac2bc7b4b5c8a8e7c.exe
"C:\Users\Admin\AppData\Local\Temp\42dff82cc488c7fac2bc7b4b5c8a8e7c.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4972
- 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:1592
- C:\Users\Admin\AppData\Local\Temp\TiKNrHbfVf1fCzc.exe
  C:\Users\Admin\AppData\Local\Temp\TiKNrHbfVf1fCzc.exe
  2⤵
  - Executes dropped EXE
  PID:4460

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
19ed334066870dbb8cfa822523b7cf20

SHA1
bae74f387720ec1df1813f7439f90e8bd51c6d7d

SHA256
ebecd138fc6736658e0ac40f46c690d8be9c2a6224b854658695ecaa44e702f0

SHA512
1b20cc2b38a535049541b7afc0a409123516b2c51060acdb8cbbd187d0dc1fdabf07f865e908f46ce5ced96d76718af455de0f26e5d3af469e7072900e8b00d1

Download Submit
C:\Users\Admin\AppData\Local\Temp\TiKNrHbfVf1fCzc.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/1592-9-0x00000000004D0000-0x00000000004E7000-memory.dmp

Filesize
92KB

Download
memory/4972-0-0x00000000003A0000-0x00000000003B7000-memory.dmp

Filesize
92KB

Download
memory/4972-7-0x00000000003A0000-0x00000000003B7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads