4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e

General

Target

4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe
Size

372KB
MD5

fce8fbcd58adfde611742452727f3647
SHA1

b5ca6911517e423a45f23873c40e4919b7db1b2d
SHA256

4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e
SHA512

0e139a3c5d7e0be698a9055ac5e5a94d01dfbf32c69ae43355fd9ac2cdec4a8c7264d66a24ecf8811ecd243205d2704ed8b5a8805df232e9faedd2442c462594
SSDEEP

6144:RG9WquUIS1xxgOGngOZvhmyqC7WFm5PNHt5xImoXMFMywZ2Klb2PN1gWL:RGOSxgjgcMyqaPNHemoXMFVslb2PYG

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

yebqs.exe

pid process

1364 yebqs.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1564 cmd.exe
Loads dropped DLL 3 IoCs

Processes:

cmd.exeyebqs.exe

pid process

1564 cmd.exe
1564 cmd.exe
1364 yebqs.exe

pid	process
1564	cmd.exe

pid	process
1564	cmd.exe
1564	cmd.exe
1364	yebqs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe

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

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

676 taskkill.exe
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1660 PING.EXE

pid	process
676	taskkill.exe

pid	process
1660	PING.EXE

Suspicious behavior: EnumeratesProcesses 45 IoCs

Processes:

yebqs.exe

pid	process
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe
1364	yebqs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 676 taskkill.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

yebqs.exe

pid process

1364 yebqs.exe
1364 yebqs.exe
1364 yebqs.exe
1364 yebqs.exe
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

yebqs.exe

pid process

1364 yebqs.exe
1364 yebqs.exe
1364 yebqs.exe
1364 yebqs.exe

description	pid	process
Token: SeDebugPrivilege	676	taskkill.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.execmd.exe

description	pid	process	target process
PID 976 wrote to memory of 1564	976	4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe	cmd.exe
PID 976 wrote to memory of 1564	976	4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe	cmd.exe
PID 976 wrote to memory of 1564	976	4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe	cmd.exe
PID 976 wrote to memory of 1564	976	4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe	cmd.exe
PID 1564 wrote to memory of 676	1564	cmd.exe	taskkill.exe
PID 1564 wrote to memory of 676	1564	cmd.exe	taskkill.exe
PID 1564 wrote to memory of 676	1564	cmd.exe	taskkill.exe
PID 1564 wrote to memory of 676	1564	cmd.exe	taskkill.exe
PID 1564 wrote to memory of 1660	1564	cmd.exe	PING.EXE
PID 1564 wrote to memory of 1660	1564	cmd.exe	PING.EXE
PID 1564 wrote to memory of 1660	1564	cmd.exe	PING.EXE
PID 1564 wrote to memory of 1660	1564	cmd.exe	PING.EXE
PID 1564 wrote to memory of 1364	1564	cmd.exe	yebqs.exe
PID 1564 wrote to memory of 1364	1564	cmd.exe	yebqs.exe
PID 1564 wrote to memory of 1364	1564	cmd.exe	yebqs.exe
PID 1564 wrote to memory of 1364	1564	cmd.exe	yebqs.exe

C:\Users\Admin\AppData\Local\Temp\4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe
"C:\Users\Admin\AppData\Local\Temp\4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:976

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /f /pid 976 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e.exe" & start C:\Users\Admin\AppData\Local\yebqs.exe -f
2⤵
- Deletes itself
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1564

C:\Windows\SysWOW64\taskkill.exe
taskkill /f /pid 976
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:676

C:\Windows\SysWOW64\PING.EXE
ping -n 3 127.1
3⤵
- Runs ping.exe
PID:1660

C:\Users\Admin\AppData\Local\yebqs.exe
C:\Users\Admin\AppData\Local\yebqs.exe -f
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\yebqs.exe

Filesize
372KB

MD5
fce8fbcd58adfde611742452727f3647

SHA1
b5ca6911517e423a45f23873c40e4919b7db1b2d

SHA256
4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e

SHA512
0e139a3c5d7e0be698a9055ac5e5a94d01dfbf32c69ae43355fd9ac2cdec4a8c7264d66a24ecf8811ecd243205d2704ed8b5a8805df232e9faedd2442c462594

Download Submit
C:\Users\Admin\AppData\Local\yebqs.exe

Filesize
372KB

MD5
fce8fbcd58adfde611742452727f3647

SHA1
b5ca6911517e423a45f23873c40e4919b7db1b2d

SHA256
4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e

SHA512
0e139a3c5d7e0be698a9055ac5e5a94d01dfbf32c69ae43355fd9ac2cdec4a8c7264d66a24ecf8811ecd243205d2704ed8b5a8805df232e9faedd2442c462594

Download Submit
\Users\Admin\AppData\Local\yebqs.exe

Filesize
372KB

MD5
fce8fbcd58adfde611742452727f3647

SHA1
b5ca6911517e423a45f23873c40e4919b7db1b2d

SHA256
4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e

SHA512
0e139a3c5d7e0be698a9055ac5e5a94d01dfbf32c69ae43355fd9ac2cdec4a8c7264d66a24ecf8811ecd243205d2704ed8b5a8805df232e9faedd2442c462594

Download Submit
\Users\Admin\AppData\Local\yebqs.exe

Filesize
372KB

MD5
fce8fbcd58adfde611742452727f3647

SHA1
b5ca6911517e423a45f23873c40e4919b7db1b2d

SHA256
4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e

SHA512
0e139a3c5d7e0be698a9055ac5e5a94d01dfbf32c69ae43355fd9ac2cdec4a8c7264d66a24ecf8811ecd243205d2704ed8b5a8805df232e9faedd2442c462594

Download Submit
\Users\Admin\AppData\Local\yebqs.exe

Filesize
372KB

MD5
fce8fbcd58adfde611742452727f3647

SHA1
b5ca6911517e423a45f23873c40e4919b7db1b2d

SHA256
4a89fccf6fee993c4f73495ba3653b228250ffd026360fe8224f232d3c112e5e

SHA512
0e139a3c5d7e0be698a9055ac5e5a94d01dfbf32c69ae43355fd9ac2cdec4a8c7264d66a24ecf8811ecd243205d2704ed8b5a8805df232e9faedd2442c462594

Download Submit
memory/676-59-0x0000000000000000-mapping.dmp

Download
memory/976-55-0x0000000075E61000-0x0000000075E63000-memory.dmp

Filesize
8KB

Download
memory/976-56-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/976-54-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/976-58-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/1364-70-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/1364-64-0x0000000000000000-mapping.dmp

Download
memory/1364-69-0x0000000001000000-0x00000000010A7000-memory.dmp

Filesize
668KB

Download
memory/1564-57-0x0000000000000000-mapping.dmp

Download
memory/1660-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads