21f5f5caa41a875529a4f9e576b3466554389c941ee00b18ae5ba9fbd7c5b890

Analysis

max time kernel
145s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
18/01/2024, 20:03

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General

Target

65e9d1f5999af55c58c30ae8fa4d00f7.exe
Size

93KB
MD5

65e9d1f5999af55c58c30ae8fa4d00f7
SHA1

0edc9e43a3f7b919c62f06cff4f310cf05438a2a
SHA256

21f5f5caa41a875529a4f9e576b3466554389c941ee00b18ae5ba9fbd7c5b890
SHA512

c2bd3b9b79c1536de6c1e553dcf89f6c289bba901c65e06c1fd4cd62edcae72ba69cb96129c74a1dad0832d3ce97949c2f1b68d07201efda732a3583f201e5b3
SSDEEP

1536:SKcR4mjD9r823FTHlBg+UR088p55wNLJrdI/Iab0vaciX/FipdsoeuumvX1qqn7:SKcWmjRrz3TdUR0TwvrdI8vacmqzFz7

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
664	X0EfuWkHlEeBi0w.exe
1176	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/5628-0-0x00000000006F0000-0x0000000000707000-memory.dmp	upx
behavioral2/files/0x0007000000023226-8.dat	upx
behavioral2/memory/1176-7-0x0000000000970000-0x0000000000987000-memory.dmp	upx
behavioral2/memory/5628-9-0x00000000006F0000-0x0000000000707000-memory.dmp	upx
behavioral2/files/0x0007000000022cdf-12.dat	upx
behavioral2/memory/1176-32-0x0000000000970000-0x0000000000987000-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"	65e9d1f5999af55c58c30ae8fa4d00f7.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	65e9d1f5999af55c58c30ae8fa4d00f7.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5628	65e9d1f5999af55c58c30ae8fa4d00f7.exe
Token: SeDebugPrivilege	1176	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5628 wrote to memory of 664	5628	65e9d1f5999af55c58c30ae8fa4d00f7.exe	90
PID 5628 wrote to memory of 664	5628	65e9d1f5999af55c58c30ae8fa4d00f7.exe	90
PID 5628 wrote to memory of 664	5628	65e9d1f5999af55c58c30ae8fa4d00f7.exe	90
PID 5628 wrote to memory of 1176	5628	65e9d1f5999af55c58c30ae8fa4d00f7.exe	88
PID 5628 wrote to memory of 1176	5628	65e9d1f5999af55c58c30ae8fa4d00f7.exe	88
PID 5628 wrote to memory of 1176	5628	65e9d1f5999af55c58c30ae8fa4d00f7.exe	88

C:\Users\Admin\AppData\Local\Temp\65e9d1f5999af55c58c30ae8fa4d00f7.exe
"C:\Users\Admin\AppData\Local\Temp\65e9d1f5999af55c58c30ae8fa4d00f7.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5628
- 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:1176
- C:\Users\Admin\AppData\Local\Temp\X0EfuWkHlEeBi0w.exe
  C:\Users\Admin\AppData\Local\Temp\X0EfuWkHlEeBi0w.exe
  2⤵
  - Executes dropped EXE
  PID:664

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
bce1239076eef6e6c57c15bcb906c7f5

SHA1
e339b191c44eaee5462e4924986ec4ab47f3c3e1

SHA256
cf20ee18a7b46c798669c85619ea1b153adaaf23b59ec59c8ef80715bfac652c

SHA512
a68b3caed110c2fed31d2d8bbc2cbe649577055eb11d63619c7a834801f16cf34875d65b37766dc0fdd22dea77affb07dc21e5abf3c310affa45979b978551ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\X0EfuWkHlEeBi0w.exe

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1176-7-0x0000000000970000-0x0000000000987000-memory.dmp

Filesize
92KB

Download
memory/1176-32-0x0000000000970000-0x0000000000987000-memory.dmp

Filesize
92KB

Download
memory/5628-0-0x00000000006F0000-0x0000000000707000-memory.dmp

Filesize
92KB

Download
memory/5628-9-0x00000000006F0000-0x0000000000707000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads