d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

Analysis

max time kernel
132s
max time network
13s
platform
windows7_x64
resource
win7v20210410
submitted
04-05-2021 16:11

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General

Target

UFCECfFhnlan.exe
Size

140KB
MD5

c0f972c5e033c0b4dc268a805cfa16a2
SHA1

a3f38579feb14d3b20289e453b41d88232145f68
SHA256

d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488
SHA512

de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

Score

8^/10

discovery

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

vNnBtwWpgrep.exeBRgykdKqclan.exe

pid process

1540 vNnBtwWpgrep.exe
1680 BRgykdKqclan.exe
Loads dropped DLL 4 IoCs

Processes:

UFCECfFhnlan.exe

pid process

772 UFCECfFhnlan.exe
772 UFCECfFhnlan.exe
772 UFCECfFhnlan.exe
772 UFCECfFhnlan.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exeicacls.exe

pid process

1852 icacls.exe
580 icacls.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1540	vNnBtwWpgrep.exe
1680	BRgykdKqclan.exe

pid	process
772	UFCECfFhnlan.exe
772	UFCECfFhnlan.exe
772	UFCECfFhnlan.exe
772	UFCECfFhnlan.exe

pid	process
1852	icacls.exe
580	icacls.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

UFCECfFhnlan.exe

description	pid	process	target process
PID 772 wrote to memory of 1540	772	UFCECfFhnlan.exe	vNnBtwWpgrep.exe
PID 772 wrote to memory of 1540	772	UFCECfFhnlan.exe	vNnBtwWpgrep.exe
PID 772 wrote to memory of 1540	772	UFCECfFhnlan.exe	vNnBtwWpgrep.exe
PID 772 wrote to memory of 1540	772	UFCECfFhnlan.exe	vNnBtwWpgrep.exe
PID 772 wrote to memory of 1680	772	UFCECfFhnlan.exe	BRgykdKqclan.exe
PID 772 wrote to memory of 1680	772	UFCECfFhnlan.exe	BRgykdKqclan.exe
PID 772 wrote to memory of 1680	772	UFCECfFhnlan.exe	BRgykdKqclan.exe
PID 772 wrote to memory of 1680	772	UFCECfFhnlan.exe	BRgykdKqclan.exe

C:\Users\Admin\AppData\Local\Temp\UFCECfFhnlan.exe
"C:\Users\Admin\AppData\Local\Temp\UFCECfFhnlan.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:772

C:\Users\Admin\AppData\Local\Temp\vNnBtwWpgrep.exe
"C:\Users\Admin\AppData\Local\Temp\vNnBtwWpgrep.exe" 9 REP
2⤵
- Executes dropped EXE
PID:1540

C:\Users\Admin\AppData\Local\Temp\BRgykdKqclan.exe
"C:\Users\Admin\AppData\Local\Temp\BRgykdKqclan.exe" 8 LAN
2⤵
- Executes dropped EXE
PID:1680

C:\Users\Admin\AppData\Local\Temp\ZODxpEfRAlan.exe
"C:\Users\Admin\AppData\Local\Temp\ZODxpEfRAlan.exe" 8 LAN
2⤵
PID:884

C:\Windows\SysWOW64\icacls.exe
icacls "C:\*" /grant Everyone:F /T /C /Q
2⤵
- Modifies file permissions
PID:1852

C:\Windows\SysWOW64\icacls.exe
icacls "D:\*" /grant Everyone:F /T /C /Q
2⤵
- Modifies file permissions
PID:580

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\BRgykdKqclan.exe

MD5
c0f972c5e033c0b4dc268a805cfa16a2

SHA1
a3f38579feb14d3b20289e453b41d88232145f68

SHA256
d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

SHA512
de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

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

MD5
c0f972c5e033c0b4dc268a805cfa16a2

SHA1
a3f38579feb14d3b20289e453b41d88232145f68

SHA256
d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

SHA512
de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

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

MD5
c0f972c5e033c0b4dc268a805cfa16a2

SHA1
a3f38579feb14d3b20289e453b41d88232145f68

SHA256
d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

SHA512
de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

Download Submit
\Users\Admin\AppData\Local\Temp\BRgykdKqclan.exe

MD5
c0f972c5e033c0b4dc268a805cfa16a2

SHA1
a3f38579feb14d3b20289e453b41d88232145f68

SHA256
d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

SHA512
de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

Download Submit
\Users\Admin\AppData\Local\Temp\BRgykdKqclan.exe

MD5
c0f972c5e033c0b4dc268a805cfa16a2

SHA1
a3f38579feb14d3b20289e453b41d88232145f68

SHA256
d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

SHA512
de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

Download Submit
\Users\Admin\AppData\Local\Temp\ZODxpEfRAlan.exe

MD5
c0f972c5e033c0b4dc268a805cfa16a2

SHA1
a3f38579feb14d3b20289e453b41d88232145f68

SHA256
d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

SHA512
de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

Download Submit
\Users\Admin\AppData\Local\Temp\ZODxpEfRAlan.exe

MD5
c0f972c5e033c0b4dc268a805cfa16a2

SHA1
a3f38579feb14d3b20289e453b41d88232145f68

SHA256
d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

SHA512
de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

Download Submit
\Users\Admin\AppData\Local\Temp\vNnBtwWpgrep.exe

MD5
c0f972c5e033c0b4dc268a805cfa16a2

SHA1
a3f38579feb14d3b20289e453b41d88232145f68

SHA256
d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

SHA512
de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

Download Submit
\Users\Admin\AppData\Local\Temp\vNnBtwWpgrep.exe

MD5
c0f972c5e033c0b4dc268a805cfa16a2

SHA1
a3f38579feb14d3b20289e453b41d88232145f68

SHA256
d8a0d25776c28e17e724da2b1c8fdae28d7c6b32cfa9d3d2a20f3f57ff370488

SHA512
de7803c4119355be7e06616abbfbf44b4ee23ba2caa987b630ad520126187c1f9eb2308f0ba5ba51cc8287fa75e5251d4e9d5ad940e8beb90b97f65d4890ca47

Download Submit
memory/580-73-0x0000000000000000-mapping.dmp

Download
memory/772-59-0x0000000075EF1000-0x0000000075EF3000-memory.dmp

Filesize
8KB

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memory/884-70-0x0000000000000000-mapping.dmp

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memory/1540-62-0x0000000000000000-mapping.dmp

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memory/1680-66-0x0000000000000000-mapping.dmp

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memory/1852-72-0x0000000000000000-mapping.dmp

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