gandcrab | 6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe

General

Target

6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
Size

6.0MB
MD5

7f97b34a113170d02ff8008c2bbc7745
SHA1

fe00b8cfc0896d6d23ff3628af8c406a7683d707
SHA256

6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe
SHA512

a899eb8481c02d0c983c7761ca9962ffdea22354cdef6cefeadbdf0ac96d43a54c02ea72e89b8b5c2bdefed38ecdd960a8d267e3fc15545286844baf40ac9e93
SSDEEP

49152:LwLwHt4Ihqew+96PoBjYs5ngToDEZwTFgN+1TtI1VjFF3PBTqJQkYUjeAb3WUpPb:L9fhqezRobVjFyEUqA6Sp+ZIogCxfwis

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2884-2-0x0000000000400000-0x000000000043C000-memory.dmp	family_gandcrab
behavioral1/memory/2884-3-0x0000000000270000-0x0000000000287000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab
Unexpected DNS network traffic destination 2 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 35.205.61.67
Destination IP 35.205.61.67

description	ioc
Destination IP	35.205.61.67
Destination IP	35.205.61.67

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wqrzgzpfdey = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\wkvjvm.exe\""	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.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

Processes:

6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe

description	ioc	process
File opened (read-only)	\??\V:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\X:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\B:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\E:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\G:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\P:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\Q:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\S:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\J:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\K:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\N:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\U:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\W:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\H:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\I:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\L:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\R:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\T:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\A:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\M:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\O:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\Y:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
File opened (read-only)	\??\Z:	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.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

Processes:

6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe

pid	process
2884	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
2884	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe

description	pid	process	target process
PID 2884 wrote to memory of 1924	2884	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe	nslookup.exe
PID 2884 wrote to memory of 1924	2884	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe	nslookup.exe
PID 2884 wrote to memory of 1924	2884	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe	nslookup.exe
PID 2884 wrote to memory of 1924	2884	6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe
"C:\Users\Admin\AppData\Local\Temp\6df64a0a921bd65006968d7eb146f7ceb60ffc1345575d39edec0eded41eb4fe.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1924

Network

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2884-0-0x00000000001B0000-0x00000000001CB000-memory.dmp

Filesize
108KB

Download
memory/2884-1-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-2-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/2884-3-0x0000000000270000-0x0000000000287000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads