253de8145c186c3d3ff60304eab1f23f4fdd50eb38a212c94847578226af433c

Analysis

max time kernel
7s
max time network
8s
platform
windows7_x64
resource
win7v20201028
submitted
15-03-2021 23:08

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General

Target

90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe
Size

59KB
MD5

dc014e9681ed57207d64443cb2bbe34c
SHA1

e56f420bfb14a01b042563e1bdf6380c1a45a76c
SHA256

90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852
SHA512

347113544311ce154da6c1755e7a5b9ebac00c9b4fa9d91e58ef81bf886da0b3faef453fe12e965b003f59890644742786ae14b2671196443914fc3a8c7bac1f

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

hhcbrnaff.exe

pid process

2000 hhcbrnaff.exe
Loads dropped DLL 1 IoCs

Processes:

90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe

pid process

776 90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.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
2000	hhcbrnaff.exe

pid	process
776	90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe

description	pid	process	target process
PID 776 wrote to memory of 2000	776	90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe	hhcbrnaff.exe
PID 776 wrote to memory of 2000	776	90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe	hhcbrnaff.exe
PID 776 wrote to memory of 2000	776	90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe	hhcbrnaff.exe
PID 776 wrote to memory of 2000	776	90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe	hhcbrnaff.exe

C:\Users\Admin\AppData\Local\Temp\90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe
"C:\Users\Admin\AppData\Local\Temp\90eca63d6ac05c375af58247435cea9fa724335f946e4576986a25a553dcb852.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:776

C:\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe
"C:\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe"
2⤵
- Executes dropped EXE
PID:2000

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
cec3aca7fb19b03984edd5b329dc9310

SHA1
3e1f9a8c74faf8edfb9935ec3fcdbf6ff3f97bff

SHA256
c577c49656f45af7585cfab88b382229ced22f69c09e0bb206dcdd43264115b1

SHA512
c08b03c827759158c4e519c5e41d5727b8db8b495d46bbed6d7e48dd92f1c45c7935bc43d2f722b4ca389ed09e81c180f5f27f4cab1733cea06d215039b5e476

Download Submit
C:\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe
MD5
cec3aca7fb19b03984edd5b329dc9310

SHA1
3e1f9a8c74faf8edfb9935ec3fcdbf6ff3f97bff

SHA256
c577c49656f45af7585cfab88b382229ced22f69c09e0bb206dcdd43264115b1

SHA512
c08b03c827759158c4e519c5e41d5727b8db8b495d46bbed6d7e48dd92f1c45c7935bc43d2f722b4ca389ed09e81c180f5f27f4cab1733cea06d215039b5e476

Download Submit
\Users\Admin\AppData\Local\Temp\hhcbrnaff.exe
MD5
cec3aca7fb19b03984edd5b329dc9310

SHA1
3e1f9a8c74faf8edfb9935ec3fcdbf6ff3f97bff

SHA256
c577c49656f45af7585cfab88b382229ced22f69c09e0bb206dcdd43264115b1

SHA512
c08b03c827759158c4e519c5e41d5727b8db8b495d46bbed6d7e48dd92f1c45c7935bc43d2f722b4ca389ed09e81c180f5f27f4cab1733cea06d215039b5e476

Download Submit
memory/776-2-0x0000000076071000-0x0000000076073000-memory.dmp

Filesize
8KB

Download
memory/776-9-0x0000000002620000-0x0000000002A20000-memory.dmp

Filesize
4.0MB

Download
memory/776-8-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1060-12-0x000007FEF6200000-0x000007FEF647A000-memory.dmp

Filesize
2.5MB

Download
memory/2000-4-0x0000000000000000-mapping.dmp

Download
memory/2000-10-0x0000000001F10000-0x0000000001F11000-memory.dmp

Filesize
4KB

Download
memory/2000-11-0x0000000002700000-0x0000000002B00000-memory.dmp

Filesize
4.0MB

Download