ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef

General

Target

ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe
Size

517KB
MD5

4faedbf756856dfc8305187fe3eb12f9
SHA1

20765f7138e063f1e9f7cc474cd842bcd146f6ec
SHA256

ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef
SHA512

446c639dea2bc4119ec9625a057c166502eb26c562c806cd6b28a69490fd216f0b0f58f64ab054162fcdcdfab4c4d8933c2ccd20b1ba0a3f70c13f4be3d7b87e
SSDEEP

12288:96RafPsMXfnOr/LeJa6IEzWdiBtwxG+buDS:oRaXxvOjL6SIDwBuO

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

servs.exe

pid process

1812 servs.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4496 netsh.exe

pid	process
4496	netsh.exe

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

Processes:

ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\Control Panel\International\Geo\Nation	ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe

Drops startup file 2 IoCs

Processes:

servs.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\33a313fb7c734a432cfd360c2ea6624f.exe	servs.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\33a313fb7c734a432cfd360c2ea6624f.exe	servs.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

servs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4060001867-1434967833-2212371794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\33a313fb7c734a432cfd360c2ea6624f = "\"C:\\Users\\Admin\\AppData\\Roaming\\servs.exe\" .."	servs.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\33a313fb7c734a432cfd360c2ea6624f = "\"C:\\Users\\Admin\\AppData\\Roaming\\servs.exe\" .."	servs.exe

Drops file in Windows directory 2 IoCs

Processes:

ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe

description	ioc	process
File created	C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\security.config.cch.new	ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe
File created	C:\Windows\Microsoft.NET\Framework64\v2.0.50727\config\enterprisesec.config.cch.new	ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 24 IoCs

Processes:

servs.exe

pid	process
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe
1812	servs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

servs.exe

description pid process

Token: SeDebugPrivilege 1812 servs.exe

description	pid	process
Token: SeDebugPrivilege	1812	servs.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exeservs.exe

description	pid	process	target process
PID 2584 wrote to memory of 1812	2584	ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe	servs.exe
PID 2584 wrote to memory of 1812	2584	ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe	servs.exe
PID 1812 wrote to memory of 4496	1812	servs.exe	netsh.exe
PID 1812 wrote to memory of 4496	1812	servs.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe
"C:\Users\Admin\AppData\Local\Temp\ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2584

C:\Users\Admin\AppData\Roaming\servs.exe
"C:\Users\Admin\AppData\Roaming\servs.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812

C:\Windows\SYSTEM32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\servs.exe" "servs.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4496

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\servs.exe

Filesize
517KB

MD5
4faedbf756856dfc8305187fe3eb12f9

SHA1
20765f7138e063f1e9f7cc474cd842bcd146f6ec

SHA256
ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef

SHA512
446c639dea2bc4119ec9625a057c166502eb26c562c806cd6b28a69490fd216f0b0f58f64ab054162fcdcdfab4c4d8933c2ccd20b1ba0a3f70c13f4be3d7b87e

Download Submit
C:\Users\Admin\AppData\Roaming\servs.exe

Filesize
517KB

MD5
4faedbf756856dfc8305187fe3eb12f9

SHA1
20765f7138e063f1e9f7cc474cd842bcd146f6ec

SHA256
ef88ebcdb725a3515097e271e0dd5b7e735100605aa82ef734de7c1f902b95ef

SHA512
446c639dea2bc4119ec9625a057c166502eb26c562c806cd6b28a69490fd216f0b0f58f64ab054162fcdcdfab4c4d8933c2ccd20b1ba0a3f70c13f4be3d7b87e

Download Submit
memory/1812-133-0x0000000000000000-mapping.dmp

Download
memory/1812-136-0x00007FF9C3220000-0x00007FF9C3C56000-memory.dmp

Filesize
10.2MB

Download
memory/2584-132-0x00007FF9C3220000-0x00007FF9C3C56000-memory.dmp

Filesize
10.2MB

Download
memory/4496-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads