93b7e45003493addae62be080d3b82f2472829bec0c96e956ba96977436a3155

General

Target

def683c29a3b6f683753d764793a9641.exe
Size

347KB
MD5

def683c29a3b6f683753d764793a9641
SHA1

55c521f3ea84868cdc99c7a1ee01fabc956785a1
SHA256

93b7e45003493addae62be080d3b82f2472829bec0c96e956ba96977436a3155
SHA512

e6810bb0492edd2430b708a95e6904ed7e745aaf14f5cad3d5cffc57038a807a5e7b209489817c24faad99d211e1c091bda12dde47f4acb32b00008e602dda26
SSDEEP

6144:hGyGCamYcs+qHlKxp+lI78mc7s34pmdD2CWvHkSDFTih5owmXesY0:h3JamJfz7GAIpSDKvbhih5owmXesX

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1192	EVjA7MVI6ip0lTw.exe
4684	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/3956-0-0x0000000000B80000-0x0000000000B97000-memory.dmp	upx
behavioral2/memory/3956-8-0x0000000000B80000-0x0000000000B97000-memory.dmp	upx
behavioral2/memory/4684-9-0x0000000000750000-0x0000000000767000-memory.dmp	upx
behavioral2/files/0x0007000000023236-10.dat	upx
behavioral2/files/0x00030000000227c3-13.dat	upx
behavioral2/memory/4684-34-0x0000000000750000-0x0000000000767000-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"	def683c29a3b6f683753d764793a9641.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	def683c29a3b6f683753d764793a9641.exe
File created	C:\Windows\CTS.exe	CTS.exe

Modifies registry class 8 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell\open	EVjA7MVI6ip0lTw.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\EVJA7M~1.EXE \"%1\""	EVjA7MVI6ip0lTw.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.GRF	EVjA7MVI6ip0lTw.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.GRF\ = "GraphEdtGraph"	EVjA7MVI6ip0lTw.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph	EVjA7MVI6ip0lTw.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\ = "Filter Graph"	EVjA7MVI6ip0lTw.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell\open\command	EVjA7MVI6ip0lTw.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell	EVjA7MVI6ip0lTw.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3956	def683c29a3b6f683753d764793a9641.exe
Token: SeDebugPrivilege	4684	CTS.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1192	EVjA7MVI6ip0lTw.exe
1192	EVjA7MVI6ip0lTw.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3956 wrote to memory of 1192	3956	def683c29a3b6f683753d764793a9641.exe	87
PID 3956 wrote to memory of 1192	3956	def683c29a3b6f683753d764793a9641.exe	87
PID 3956 wrote to memory of 4684	3956	def683c29a3b6f683753d764793a9641.exe	88
PID 3956 wrote to memory of 4684	3956	def683c29a3b6f683753d764793a9641.exe	88
PID 3956 wrote to memory of 4684	3956	def683c29a3b6f683753d764793a9641.exe	88

C:\Users\Admin\AppData\Local\Temp\def683c29a3b6f683753d764793a9641.exe
"C:\Users\Admin\AppData\Local\Temp\def683c29a3b6f683753d764793a9641.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3956
- C:\Users\Admin\AppData\Local\Temp\EVjA7MVI6ip0lTw.exe
  C:\Users\Admin\AppData\Local\Temp\EVjA7MVI6ip0lTw.exe
  2⤵
  - Executes dropped EXE
  - Modifies registry class
  - Suspicious use of SetWindowsHookEx
  PID:1192
- 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:4684

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
383KB

MD5
ec83e0fdcbb0cd5e0636ed0b83c13422

SHA1
23e0eef019c16aed39c0f0cae2a6e8641d73db5f

SHA256
7a6922b820fdf1a7bb660627ff513db233c07a17813df172fd944387476ac81c

SHA512
d817e93379414666892ced118e266aef162d79c91356e24309ac9c1ec3ca3dbde765b43ab81f5fcb5af10f9aaf8cc4d9bdd1444c3a09a3aaaba534b68c46f3cf

Download Submit
C:\Users\Admin\AppData\Local\Temp\EVjA7MVI6ip0lTw.exe

Filesize
288KB

MD5
880e155f8f47fb0db7b2080e71d59568

SHA1
2ed0c0f809765bbabd8c7d4f58e9a0bacf2bb629

SHA256
6011cd7d1a314d109bc0755d17be2e7812b2f5542ec24f3f3023532c1e8a1d44

SHA512
70977d36b8ec8c271c5ffd3303677743a2626196bb62af5d817e86a7eeed972bbb70acdd81508f7b4ee1da366ce02cd96a8d0e6f11627842f195cfd0c53a5bec

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/3956-0-0x0000000000B80000-0x0000000000B97000-memory.dmp

Filesize
92KB

Download
memory/3956-8-0x0000000000B80000-0x0000000000B97000-memory.dmp

Filesize
92KB

Download
memory/4684-9-0x0000000000750000-0x0000000000767000-memory.dmp

Filesize
92KB

Download
memory/4684-34-0x0000000000750000-0x0000000000767000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads