b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3

Analysis

max time kernel
215s
max time network
242s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 08:24

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General

Target

b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.exe
Size

3.0MB
MD5

2ac66cf4408d3a5f62867dce55ef8ce0
SHA1

e034b087c6e5302be9b3b148fd45a4b42637dc26
SHA256

b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3
SHA512

77049189be43d364ffd61e58cd593dc332865d3a0c4009e063b4d182fc70778b9f1a91646a66ed360fdc3b6f3c5c1ae66db4514cefd52d2719aa1cefb3d21019
SSDEEP

49152:eVkVwyZ4P6EayzgbIPRRM5OspPTr9poNgAm/pwkg7D9cp96PNxiebA5rOYiZn8:eGVwywnbuIEssp3z6D9cjOOebSivZn8

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp

pid process

224 b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp

Loads dropped DLL 2 IoCs

Processes:

b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp

pid	process
224	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp
224	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp

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 4 IoCs

Processes:

b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp

pid	process
224	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp
224	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp
224	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp
224	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.exe

description	pid	process	target process
PID 3196 wrote to memory of 224	3196	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.exe	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp
PID 3196 wrote to memory of 224	3196	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.exe	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp
PID 3196 wrote to memory of 224	3196	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.exe	b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp

C:\Users\Admin\AppData\Local\Temp\b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.exe
"C:\Users\Admin\AppData\Local\Temp\b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3196

C:\Users\Admin\AppData\Local\Temp\is-D8V6K.tmp\b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp
"C:\Users\Admin\AppData\Local\Temp\is-D8V6K.tmp\b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp" /SL5="$901CC,2498939,70144,C:\Users\Admin\AppData\Local\Temp\b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
PID:224

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\is-D8V6K.tmp\b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp

Filesize
1.2MB

MD5
e7106fbf42fbc6d5b08a18ada4f781b4

SHA1
36d4a629f79d772c0b0df8bd2ae2ea09108d239d

SHA256
64e1f1fa7d91920b17bc7bc679a4cd8d87ff5b104318b6921bb6bf6a19055635

SHA512
adf876296a952aadeb4f25211c0939bf5a278809b5d3007ad7e26c5d4975e7684d242c1b3de796efd474a47cb7ecdb80f9047935924a1108bf0e4d7c973d1845

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-D8V6K.tmp\b871b1a9a627e580ccf24fc12ea3c8b4e2c29a37076cf8cd1286d5a1d77c8da3.tmp

Filesize
1.2MB

MD5
e7106fbf42fbc6d5b08a18ada4f781b4

SHA1
36d4a629f79d772c0b0df8bd2ae2ea09108d239d

SHA256
64e1f1fa7d91920b17bc7bc679a4cd8d87ff5b104318b6921bb6bf6a19055635

SHA512
adf876296a952aadeb4f25211c0939bf5a278809b5d3007ad7e26c5d4975e7684d242c1b3de796efd474a47cb7ecdb80f9047935924a1108bf0e4d7c973d1845

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-OBSGC.tmp\DownLib.dll

Filesize
183KB

MD5
db25dfdd4c1f2b65c68a230881072695

SHA1
94cd6a3438041f0e61b0a1bea7b66461854efe69

SHA256
1b66aaf1e7e3c493dd96af3b7442ea60072f6e93ba45281eacd31a14ca7e7e73

SHA512
db69e4ab2218856e5184d9094e7e39705b83e3efdc15225067205c8faf6e5836145364f1d509192defa3b48864e72b9f8c0f2dc53a7adb2b86c655318b7afc2c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-OBSGC.tmp\DownLib.dll

Filesize
183KB

MD5
db25dfdd4c1f2b65c68a230881072695

SHA1
94cd6a3438041f0e61b0a1bea7b66461854efe69

SHA256
1b66aaf1e7e3c493dd96af3b7442ea60072f6e93ba45281eacd31a14ca7e7e73

SHA512
db69e4ab2218856e5184d9094e7e39705b83e3efdc15225067205c8faf6e5836145364f1d509192defa3b48864e72b9f8c0f2dc53a7adb2b86c655318b7afc2c

Download Submit
memory/224-135-0x0000000000000000-mapping.dmp

Download
memory/224-140-0x0000000003BF0000-0x0000000003C27000-memory.dmp

Filesize
220KB

Download
memory/3196-132-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3196-134-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3196-141-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download