2cf5e920703fb6f4d0b4bfb727317aa6360653c801dccd3e504d1866de78204a

Analysis

max time kernel
142s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
17/09/2023, 16:52

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General

Target

39c0ad75b07017ddb7e66b789f56e223_JC.exe
Size

84KB
MD5

39c0ad75b07017ddb7e66b789f56e223
SHA1

201a5d4658646371ab1e21d7f1b79bc4ab8c9019
SHA256

2cf5e920703fb6f4d0b4bfb727317aa6360653c801dccd3e504d1866de78204a
SHA512

aee1d415468b7fab7088921d86d60ed20ea5299ee32ea448b713eea58b2855896134a794a6b81326c58e53f6c51fe0ee3944b044a2d0e37609fff571b9ef227a
SSDEEP

768:eCNK2cNW0QbRsWjcd+6yBFLqJ4Z8qx70RM8/O/B2ZR1RGn8NIoGLLRNeodS:eEcNjQlsWjcd+xzl7SM+Gn8255Neog

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3076	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 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4336-0-0x0000000000900000-0x0000000000919000-memory.dmp	upx
behavioral2/memory/3076-8-0x0000000000BC0000-0x0000000000BD9000-memory.dmp	upx
behavioral2/files/0x00080000000231eb-6.dat	upx
behavioral2/files/0x00080000000231eb-9.dat	upx
behavioral2/memory/4336-7-0x0000000000900000-0x0000000000919000-memory.dmp	upx
behavioral2/files/0x000300000002257c-12.dat	upx
behavioral2/files/0x00080000000231e8-29.dat	upx
behavioral2/memory/3076-32-0x0000000000BC0000-0x0000000000BD9000-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"	39c0ad75b07017ddb7e66b789f56e223_JC.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	39c0ad75b07017ddb7e66b789f56e223_JC.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4336	39c0ad75b07017ddb7e66b789f56e223_JC.exe
Token: SeDebugPrivilege	3076	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 3076	4336	39c0ad75b07017ddb7e66b789f56e223_JC.exe	84
PID 4336 wrote to memory of 3076	4336	39c0ad75b07017ddb7e66b789f56e223_JC.exe	84
PID 4336 wrote to memory of 3076	4336	39c0ad75b07017ddb7e66b789f56e223_JC.exe	84

C:\Users\Admin\AppData\Local\Temp\39c0ad75b07017ddb7e66b789f56e223_JC.exe
"C:\Users\Admin\AppData\Local\Temp\39c0ad75b07017ddb7e66b789f56e223_JC.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4336
- 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:3076

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
406KB

MD5
35edb6250c36cc2ac83319790b0498fb

SHA1
c02390e00d23da3689150ea012f293eedd303f22

SHA256
8b2670c159a0d03f14b0903a5baced603292e27fe05c4e3cf0e2df75becd72bf

SHA512
9a6b8516a4e88fcd1f793fbe410a8fe6a086f6914fa0d61904aad97382fb9de1c6a17be507a97ffef6c3820d8b7a2ea784cadeaae24162fc87b9e3131cd13e3c

Download Submit
C:\Users\Admin\AppData\Local\Temp\x2jgHLxgEnnJPjr.exe

Filesize
84KB

MD5
72ba35792e4a9fc982ba1abb24c1215f

SHA1
186f1e2313bc0267558aece2eb217f0efcdc680d

SHA256
909f0623a8d7d994499cc6a1f463e1d9c19b070784f409cbe4e6d05bf34da7ed

SHA512
f05c5326f3f065292f688c4936d2c58d0efc6c0c71cc79ea14afc5fd776c4c6e51d83639bc13235238d6275f849406fdee88968f429cdc048ffd16558962a7de

Download Submit
C:\Windows\CTS.exe

Filesize
84KB

MD5
61e4cd6776d8367eee2470e5452bdd15

SHA1
ce19b517032d6cd9b201a4e74eaaf009f86d6563

SHA256
ff52d994f38f49789547cf1efe7c6a6535162c2ee1c405dadd229a6be1cf23a3

SHA512
ba6db6db02788cc9b3bbaed92fb4a47d11f9a857a00b5384ec4f5f4baa91825a6800f255f030c0ac455ab3562c321c632ab39ad4ddfcedd9530db1515fe6cd77

Download Submit
C:\Windows\CTS.exe

Filesize
84KB

MD5
61e4cd6776d8367eee2470e5452bdd15

SHA1
ce19b517032d6cd9b201a4e74eaaf009f86d6563

SHA256
ff52d994f38f49789547cf1efe7c6a6535162c2ee1c405dadd229a6be1cf23a3

SHA512
ba6db6db02788cc9b3bbaed92fb4a47d11f9a857a00b5384ec4f5f4baa91825a6800f255f030c0ac455ab3562c321c632ab39ad4ddfcedd9530db1515fe6cd77

Download Submit
memory/3076-8-0x0000000000BC0000-0x0000000000BD9000-memory.dmp

Filesize
100KB

Download
memory/3076-32-0x0000000000BC0000-0x0000000000BD9000-memory.dmp

Filesize
100KB

Download
memory/4336-0-0x0000000000900000-0x0000000000919000-memory.dmp

Filesize
100KB

Download
memory/4336-7-0x0000000000900000-0x0000000000919000-memory.dmp

Filesize
100KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads