253de8145c186c3d3ff60304eab1f23f4fdd50eb38a212c94847578226af433c

Analysis

max time kernel
8s
max time network
16s
platform
windows7_x64
resource
win7v20201028
submitted
15-03-2021 23:08

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General

Target

2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe
Size

100KB
MD5

ab3bfa9ef77a888353ed05d0bed7e931
SHA1

71c44b922b3de2db1e6c63a846e92850973526fc
SHA256

2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b
SHA512

4e48b0f765a8a9af0dfe035b98c9ea2b3928a802111e04f12b82d8f7222b9565006e6c282451a26ee33ea0b581502ca5c475e76ebfc001cb16d4b93d02e24b81

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

hhcbrnaff.exe

pid process

1180 hhcbrnaff.exe
Loads dropped DLL 1 IoCs

Processes:

2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe

pid process

372 2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.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
1180	hhcbrnaff.exe

pid	process
372	2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe

description	pid	process	target process
PID 372 wrote to memory of 1180	372	2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe	hhcbrnaff.exe
PID 372 wrote to memory of 1180	372	2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe	hhcbrnaff.exe
PID 372 wrote to memory of 1180	372	2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe	hhcbrnaff.exe
PID 372 wrote to memory of 1180	372	2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe	hhcbrnaff.exe

C:\Users\Admin\AppData\Local\Temp\2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe
"C:\Users\Admin\AppData\Local\Temp\2fc4602468f243f742b496683ee9bd6ff22c4c85b56567eff3df2bf7ef5c495b.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:372

C:\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe
"C:\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe"
2⤵
- Executes dropped EXE
PID:1180

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe
MD5
6fe195b17738cb803d3c293f852c1071

SHA1
5b88d218f72b3cfe3439a0d6f67c31a5e17e9fc0

SHA256
0c82e17f246c4442e185b10c934242e999fb85c5a6a8b2739b9b0b2e12e32258

SHA512
8843d89ae803716cb0878f78e881ab039f50a1a3036c955fc2fce7ff84b1aa099c6a074c0bf440fffe0b58c61015ec92f55a2c62e7742a298d03fc1497a646bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe
MD5
6fe195b17738cb803d3c293f852c1071

SHA1
5b88d218f72b3cfe3439a0d6f67c31a5e17e9fc0

SHA256
0c82e17f246c4442e185b10c934242e999fb85c5a6a8b2739b9b0b2e12e32258

SHA512
8843d89ae803716cb0878f78e881ab039f50a1a3036c955fc2fce7ff84b1aa099c6a074c0bf440fffe0b58c61015ec92f55a2c62e7742a298d03fc1497a646bf

Download Submit
\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe
MD5
6fe195b17738cb803d3c293f852c1071

SHA1
5b88d218f72b3cfe3439a0d6f67c31a5e17e9fc0

SHA256
0c82e17f246c4442e185b10c934242e999fb85c5a6a8b2739b9b0b2e12e32258

SHA512
8843d89ae803716cb0878f78e881ab039f50a1a3036c955fc2fce7ff84b1aa099c6a074c0bf440fffe0b58c61015ec92f55a2c62e7742a298d03fc1497a646bf

Download Submit
memory/372-2-0x00000000765E1000-0x00000000765E3000-memory.dmp

Filesize
8KB

Download
memory/372-9-0x0000000002680000-0x0000000002A80000-memory.dmp

Filesize
4.0MB

Download
memory/372-8-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/976-12-0x000007FEF7790000-0x000007FEF7A0A000-memory.dmp

Filesize
2.5MB

Download
memory/1180-4-0x0000000000000000-mapping.dmp

Download
memory/1180-10-0x0000000001D40000-0x0000000001D41000-memory.dmp

Filesize
4KB

Download
memory/1180-11-0x0000000002670000-0x0000000002A70000-memory.dmp

Filesize
4.0MB

Download