de99af65e0a55568c432a2a0d343c186deb543819bb55a921bf12973b24af876

Analysis

max time kernel
155s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2024 20:27

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General

Target

3dce21829621ef87d72bf92339bc36a5.exe
Size

267KB
MD5

3dce21829621ef87d72bf92339bc36a5
SHA1

12e9e51a03bd389acb961610f1911b10e451ea7a
SHA256

de99af65e0a55568c432a2a0d343c186deb543819bb55a921bf12973b24af876
SHA512

600413c5aa065278ee6c737dddfc8c53165e99b14083bda7cacbb03b956d18b5ac2c6a04e2f9a4a0dd0e0de12ccea71829504473f6beef47c67d84d2808f6772
SSDEEP

3072:sr3KcWmjRrzSm6lkbTxFssKX2QR5cxIeQEchziupdUzPF44VIywcE750l0HvN0OH:/dlkbTxWX7Ect+lVw3+lwvSWm7rnh3QZ

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2812	Ma9kUsohF1WAccz.exe
1448	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/1284-0-0x0000000000CE0000-0x0000000000CF7000-memory.dmp	upx
behavioral2/files/0x000300000001e715-7.dat	upx
behavioral2/memory/1284-8-0x0000000000CE0000-0x0000000000CF7000-memory.dmp	upx
behavioral2/memory/1448-10-0x0000000000BC0000-0x0000000000BD7000-memory.dmp	upx
behavioral2/files/0x0007000000022556-14.dat	upx
behavioral2/memory/1448-24-0x0000000000BC0000-0x0000000000BD7000-memory.dmp	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"	3dce21829621ef87d72bf92339bc36a5.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	3dce21829621ef87d72bf92339bc36a5.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1284	3dce21829621ef87d72bf92339bc36a5.exe
Token: SeDebugPrivilege	1448	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 2812	1284	3dce21829621ef87d72bf92339bc36a5.exe	90
PID 1284 wrote to memory of 2812	1284	3dce21829621ef87d72bf92339bc36a5.exe	90
PID 1284 wrote to memory of 2812	1284	3dce21829621ef87d72bf92339bc36a5.exe	90
PID 1284 wrote to memory of 1448	1284	3dce21829621ef87d72bf92339bc36a5.exe	92
PID 1284 wrote to memory of 1448	1284	3dce21829621ef87d72bf92339bc36a5.exe	92
PID 1284 wrote to memory of 1448	1284	3dce21829621ef87d72bf92339bc36a5.exe	92

C:\Users\Admin\AppData\Local\Temp\3dce21829621ef87d72bf92339bc36a5.exe
"C:\Users\Admin\AppData\Local\Temp\3dce21829621ef87d72bf92339bc36a5.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\Ma9kUsohF1WAccz.exe
  C:\Users\Admin\AppData\Local\Temp\Ma9kUsohF1WAccz.exe
  2⤵
  - Executes dropped EXE
  PID:2812
- 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:1448

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
358KB

MD5
3deb7defdf8d56ecf7ccf04728820419

SHA1
4013cc4165deb8fa28850f03b6e4045d29d92974

SHA256
791f9bae89a30295c0cc6037e618b8a66290c86aa24610f9d2a219866eb1a253

SHA512
86753db88bddde856c8dbd305ff79fc29b2a10827e38c73a5f8ca89b477c65e26ded1f5bfd99ea5aface711b0172ae51cec87186ef729ae7d3a912ecd9de4e9d

Download Submit
C:\Users\Admin\AppData\Local\Temp\Ma9kUsohF1WAccz.exe

Filesize
231KB

MD5
004adb1bc74734087fa70e213a8318c1

SHA1
e824f25da72c7047a4b36f73f133d747b196447e

SHA256
31313e33f3a1832977e22f4a42d1f34273bd19daa5699b830e1b8c73fc979b65

SHA512
c39f7959463faf05db8e5f75a2596eb654e204e06c9fe158ae0dddc58a9d10aa94781b6120eb1bd3bd178d3bc0e0ae4bdd1aaf68565cdcb2b3aac10a5832d5c5

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/1284-0-0x0000000000CE0000-0x0000000000CF7000-memory.dmp

Filesize
92KB

Download
memory/1284-8-0x0000000000CE0000-0x0000000000CF7000-memory.dmp

Filesize
92KB

Download
memory/1448-10-0x0000000000BC0000-0x0000000000BD7000-memory.dmp

Filesize
92KB

Download
memory/1448-24-0x0000000000BC0000-0x0000000000BD7000-memory.dmp

Filesize
92KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads