1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808

General

Target

1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe
Size

2.7MB
MD5

3020110d12d1ac3bcf366d45ce9ca2ad
SHA1

64020496503256291220848eee13ba2b139138aa
SHA256

1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808
SHA512

3bf976033d13cc13fedaa3b427074f8227607ada7bf96d9998a75632f236fabad6ea29580638a77b5a1d64c09f931f2cfc1051cd74947c766e86c3d9613b04d4
SSDEEP

49152:kdTfLTYegaJ7dKvri9ZD5CVFUJ2iZf8pXsUa+pYgcHC+br13kvUzfA9h+:kTYe1J7rZkCC0HDbcW

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yckhd.lnk	Client.exe

Executes dropped EXE 1 IoCs

pid	Process
2600	Client.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4644-1-0x0000000068CD0000-0x0000000068CDF000-memory.dmp	upx

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\EXFQDX = "C:\\Client.exe //yckhd01"	Client.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Client.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4644	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe
4644	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	Client.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4644	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe
4644	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe
4644	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe
2600	Client.exe
2600	Client.exe
2600	Client.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 2600	4644	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe	96
PID 4644 wrote to memory of 2600	4644	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe	96
PID 4644 wrote to memory of 2600	4644	1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe	96

C:\Users\Admin\AppData\Local\Temp\1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe
"C:\Users\Admin\AppData\Local\Temp\1785f3eb202e7ce1b5bbffc2b126a2a470ba1a6a9feab71cc8a2f758fd6e7808.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4644
- C:\Client.exe
  "C:\Client.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2600

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

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Client.exe

Filesize
649KB

MD5
bf5aaf0e7690c42f792d3f0a6a99532d

SHA1
d997491486f2a617e1315d1e5936ef7eb4990989

SHA256
45b58d2770f9074cbfea11fdece1dc7774218bcdb3c338608130803b42d0e7be

SHA512
f2d40b8087feec137d53dae39e93e4d52ba52dfacb67c7a3b6fa8be926e3619515874df80b5f32bf3cb824457bdd14af724ee867b8fc77c5c2fff5cf00966918

Download Submit
memory/2600-27-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-32-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-35-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-11-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2600-12-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/2600-13-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2600-14-0x0000000075C80000-0x0000000075C81000-memory.dmp

Filesize
4KB

Download
memory/2600-16-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-19-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-18-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-17-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-34-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-33-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-21-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-28-0x0000000075C80000-0x0000000075C81000-memory.dmp

Filesize
4KB

Download
memory/2600-25-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2600-26-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/2600-22-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-23-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-29-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-31-0x0000000075C60000-0x0000000075D50000-memory.dmp

Filesize
960KB

Download
memory/2600-30-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/4644-0-0x0000000000400000-0x0000000000716000-memory.dmp

Filesize
3.1MB

Download
memory/4644-2-0x0000000000400000-0x0000000000716000-memory.dmp

Filesize
3.1MB

Download
memory/4644-20-0x0000000000400000-0x0000000000716000-memory.dmp

Filesize
3.1MB

Download
memory/4644-1-0x0000000068CD0000-0x0000000068CDF000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads