9f19d03371f1d63949545bcc0e9c4e702a6e97c53b26a707957243496a5a34b1

General

Target

XLSmartApp.exe
Size

1.1MB
MD5

1a832e5e1574fc6176dc960c6aea3a85
SHA1

5c1c7f2b66e72d62c3d658ed2f1155b0bb39e13c
SHA256

8f39b7064e9a22e60bd463009d9cf19323323110783a644dfb5bb40da9001aa4
SHA512

a32ce2b3b1ba332c55a806a6831405dabbdcf1901977db01e7806098cc54debf0abed74db52206287431a97b2ba9e655a6d99500dc91785085d913e8eb64c473
SSDEEP

24576:l7ltJMTh3o77d03Cr7204Zfy7mpG0fh0lhSMXlsJnggfMJt7sw:VltJr77dff20YfBGT0ggfwOw

Score

10^/10

discovery evasion persistence trojan

Malware Config

Extracted

Credentials

Protocol: ftp
Host:
27.124.45.155
Port:
21
Username:
lz165404
Password:
lz165404.

Signatures

UAC bypass 3 TTPs 2 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	XLSmartApp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	XLSmartApp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\系统优化组件 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\XLSmartApp.exe"	XLSmartApp.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\N:	XLSmartApp.exe
File opened (read-only)	\??\O:	XLSmartApp.exe
File opened (read-only)	\??\Y:	XLSmartApp.exe
File opened (read-only)	\??\L:	XLSmartApp.exe
File opened (read-only)	\??\J:	XLSmartApp.exe
File opened (read-only)	\??\Q:	XLSmartApp.exe
File opened (read-only)	\??\S:	XLSmartApp.exe
File opened (read-only)	\??\U:	XLSmartApp.exe
File opened (read-only)	\??\X:	XLSmartApp.exe
File opened (read-only)	\??\B:	XLSmartApp.exe
File opened (read-only)	\??\V:	XLSmartApp.exe
File opened (read-only)	\??\W:	XLSmartApp.exe
File opened (read-only)	\??\Z:	XLSmartApp.exe
File opened (read-only)	\??\K:	XLSmartApp.exe
File opened (read-only)	\??\G:	XLSmartApp.exe
File opened (read-only)	\??\H:	XLSmartApp.exe
File opened (read-only)	\??\I:	XLSmartApp.exe
File opened (read-only)	\??\M:	XLSmartApp.exe
File opened (read-only)	\??\P:	XLSmartApp.exe
File opened (read-only)	\??\R:	XLSmartApp.exe
File opened (read-only)	\??\T:	XLSmartApp.exe
File opened (read-only)	\??\E:	XLSmartApp.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\	XLSmartApp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	XLSmartApp.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

pid	Process
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe
2648	XLSmartApp.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2648	XLSmartApp.exe

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	XLSmartApp.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	XLSmartApp.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\XLSmartApp.exe
"C:\Users\Admin\AppData\Local\Temp\XLSmartApp.exe"
1⤵
- UAC bypass
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:2648

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2648-1-0x000001B90E2B0000-0x000001B90E2B2000-memory.dmp

Filesize
8KB

Download
memory/2648-4-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download
memory/2648-3-0x000001B90E370000-0x000001B90E3EE000-memory.dmp

Filesize
504KB

Download
memory/2648-7-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download
memory/2648-9-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download
memory/2648-8-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download
memory/2648-6-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download
memory/2648-10-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download
memory/2648-12-0x0000000180000000-0x000000018002D000-memory.dmp

Filesize
180KB

Download
memory/2648-11-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download
memory/2648-23-0x000001B90EEE0000-0x000001B90EF0E000-memory.dmp

Filesize
184KB

Download
memory/2648-22-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download
memory/2648-34-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download
memory/2648-35-0x000001B90F260000-0x000001B90F2CC000-memory.dmp

Filesize
432KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads