21f5f5caa41a875529a4f9e576b3466554389c941ee00b18ae5ba9fbd7c5b890

General

Target

65e9d1f5999af55c58c30ae8fa4d00f7.exe
Size

93KB
MD5

65e9d1f5999af55c58c30ae8fa4d00f7
SHA1

0edc9e43a3f7b919c62f06cff4f310cf05438a2a
SHA256

21f5f5caa41a875529a4f9e576b3466554389c941ee00b18ae5ba9fbd7c5b890
SHA512

c2bd3b9b79c1536de6c1e553dcf89f6c289bba901c65e06c1fd4cd62edcae72ba69cb96129c74a1dad0832d3ce97949c2f1b68d07201efda732a3583f201e5b3
SSDEEP

1536:SKcR4mjD9r823FTHlBg+UR088p55wNLJrdI/Iab0vaciX/FipdsoeuumvX1qqn7:SKcWmjRrz3TdUR0TwvrdI8vacmqzFz7

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1740	byDEcflQ6ECaH4c.exe
1720	CTS.exe

Loads dropped DLL 2 IoCs

pid	Process
1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe
1708	65e9d1f5999af55c58c30ae8fa4d00f7.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
behavioral1/memory/1708-0-0x0000000001320000-0x0000000001337000-memory.dmp	upx
behavioral1/files/0x000a000000012262-17.dat	upx
behavioral1/memory/1720-18-0x0000000000AE0000-0x0000000000AF7000-memory.dmp	upx
behavioral1/memory/1708-15-0x0000000001320000-0x0000000001337000-memory.dmp	upx
behavioral1/memory/1708-11-0x0000000000070000-0x0000000000087000-memory.dmp	upx
behavioral1/files/0x000a000000012252-20.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"	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	1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe
Token: SeDebugPrivilege	1720	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 1740	1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe	28
PID 1708 wrote to memory of 1740	1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe	28
PID 1708 wrote to memory of 1740	1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe	28
PID 1708 wrote to memory of 1740	1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe	28
PID 1708 wrote to memory of 1720	1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe	30
PID 1708 wrote to memory of 1720	1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe	30
PID 1708 wrote to memory of 1720	1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe	30
PID 1708 wrote to memory of 1720	1708	65e9d1f5999af55c58c30ae8fa4d00f7.exe	30

C:\Users\Admin\AppData\Local\Temp\65e9d1f5999af55c58c30ae8fa4d00f7.exe
"C:\Users\Admin\AppData\Local\Temp\65e9d1f5999af55c58c30ae8fa4d00f7.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\byDEcflQ6ECaH4c.exe
  C:\Users\Admin\AppData\Local\Temp\byDEcflQ6ECaH4c.exe
  2⤵
  - Executes dropped EXE
  PID:1740
- 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:1720

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\byDEcflQ6ECaH4c.exe

Filesize
93KB

MD5
28c6cd184f17594320d490ed346092d1

SHA1
20d6bdb5f79ac020dc518cc157fadbd5019a7d6d

SHA256
226516572587152ad29570d334a8aec8ab97cd0315f6946cc2b28f563c695c4e

SHA512
8ea98083b9cd2a4115d4862e79827b0d69522cb619191203174dae7662200b8885869d3bb2c1cc69c6229bca306375035a8564ea29abf0bc2766a1f5c356123d

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
\Users\Admin\AppData\Local\Temp\byDEcflQ6ECaH4c.exe

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
memory/1708-0-0x0000000001320000-0x0000000001337000-memory.dmp

Filesize
92KB

Download
memory/1708-15-0x0000000001320000-0x0000000001337000-memory.dmp

Filesize
92KB

Download
memory/1708-11-0x0000000000070000-0x0000000000087000-memory.dmp

Filesize
92KB

Download
memory/1720-18-0x0000000000AE0000-0x0000000000AF7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads