bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27/11/2022, 10:33 UTC

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General

Target

bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe
Size

391KB
MD5

69d3efdcefbe2c48da373869723c4581
SHA1

36e7359bc003ef18410def193e5dc58833c398e4
SHA256

bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86
SHA512

43a9eac776d5dca213e921f8e2bf0fd0c9ee77f14ee86ddb2d33612f70590a0189ecd55eb93b06df0351459e11a4cb771e07ecefb77fd857200791c8c210828b
SSDEEP

6144:oob6m1dFAokqnYV9wpmqSafvaxcEBRylI:o+1PA/qnYV9wpmqSafvaOEBRy

Score

4^/10

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4756	bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe
Token: SeRestorePrivilege	1668	dw20.exe
Token: SeBackupPrivilege	1668	dw20.exe
Token: SeBackupPrivilege	1668	dw20.exe
Token: SeBackupPrivilege	1668	dw20.exe
Token: SeBackupPrivilege	1668	dw20.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4756 wrote to memory of 1668	4756	bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe	79
PID 4756 wrote to memory of 1668	4756	bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe	79
PID 4756 wrote to memory of 1668	4756	bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe	79

C:\Users\Admin\AppData\Local\Temp\bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe
"C:\Users\Admin\AppData\Local\Temp\bfc12957a4fadc56cf5130da9203885743eeccbb8c8b77bb3988219d84bf9f86.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4756
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 940
  2⤵
  - Drops file in Windows directory
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:1668

Network

DNS

97.97.242.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

97.97.242.52.in-addr.arpa

IN PTR

Response
DNS

2.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.4.0.c.0.0.3.0.1.3.0.6.2.ip6.arpa

Remote address:

8.8.8.8:53

Request

2.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.4.0.c.0.0.3.0.1.3.0.6.2.ip6.arpa

IN PTR

Response

52.182.141.63:443

322 B
7
93.184.221.240:80

322 B
7
93.184.221.240:80

322 B
7

8.8.8.8:53

97.97.242.52.in-addr.arpa

dns

71 B
145 B
1
1

DNS Request

97.97.242.52.in-addr.arpa
8.8.8.8:53

2.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.4.0.c.0.0.3.0.1.3.0.6.2.ip6.arpa

dns

118 B
204 B
1
1

DNS Request

2.8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.3.0.0.0.4.0.c.0.0.3.0.1.3.0.6.2.ip6.arpa

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4756-132-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4756-134-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4756-135-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

DNS Request

MITRE ATT&CK Enterprise v6

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Downloads

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