gandcrab | d1fab40762ccd0a343d3be3d6fa5a2b4ec3459279c6bfe93019817f0fb6aa144

General

Target

2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
Size

70KB
MD5

42b863e0d684522bbe2f276cad58a160
SHA1

fb1d9b6080c1c7d99a755df88a436b2519bf95a3
SHA256

d1fab40762ccd0a343d3be3d6fa5a2b4ec3459279c6bfe93019817f0fb6aa144
SHA512

cb8bbb45d7875d326601664ee5dd0a09fc359a070b7f8e7fc3b4815d6b5a938e6149a9d447463d867c7934e1632bc302b983d0d84cae693a8dd5008458da31ee
SSDEEP

1536:ZZZZZZZZZZZZZpXzzzzzzzzzzzzADypczUk+lkZJngWMqqU+2bbbAV2/S2OvvdZl:wd5BJHMqqDL2/Ovvdr

Score

10^/10

gandcrab backdoor discovery persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/108-0-0x000000000FC90000-0x000000000FCA7000-memory.dmp	family_gandcrab
behavioral1/memory/108-3-0x000000000FC90000-0x000000000FCA7000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
Gandcrab family
gandcrab

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\xifjuspipdr = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe"	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\B:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\E:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\I:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\J:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\N:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\O:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\R:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\T:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\Y:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\G:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\M:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\P:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\Q:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\U:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\W:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\K:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\S:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\V:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\X:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\Z:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\A:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\H:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
File opened (read-only)	\??\L:	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe

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 opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
108	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
108	2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:108

Network

DNS

ipv4bot.whatismyipaddress.com

2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe

Remote address:

8.8.8.8:53

Request

ipv4bot.whatismyipaddress.com

IN A

Response

No results found

8.8.8.8:53

ipv4bot.whatismyipaddress.com

dns

2024-10-25_42b863e0d684522bbe2f276cad58a160_gandcrab.exe

75 B
134 B
1
1

DNS Request

ipv4bot.whatismyipaddress.com

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/108-0-0x000000000FC90000-0x000000000FCA7000-memory.dmp

Filesize
92KB

Download
memory/108-3-0x000000000FC90000-0x000000000FCA7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

DNS Request

MITRE ATT&CK Enterprise v15

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Downloads

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