gandcrab | f2c384619e0ffd8da23b8a93428a0ce450d74acf74ff147b5ef0ac7c42557a52

Analysis

max time kernel
155s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 19:32

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General

Target

2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
Size

145KB
MD5

3dcf82c90c032dc91607717998cc6ba9
SHA1

34ea9cd4f65f10c497f95c47f89f2a972b7f2511
SHA256

f2c384619e0ffd8da23b8a93428a0ce450d74acf74ff147b5ef0ac7c42557a52
SHA512

bca7abaa29fb4533b72771aae020119a7ad0d140a6c5ae7c8793c896f4f78ca205d78b71cee08493f8bc0725d5d8eebc237de8d7c3a6e43d7de2399342f00fc9
SSDEEP

3072:GYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:GyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/4696-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/4696-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

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

Detects ransomware indicator 2 IoCs

resource	yara_rule
behavioral2/memory/4696-0-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/4696-4-0x0000000000400000-0x0000000000428000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4696-0-0x0000000000400000-0x0000000000428000-memory.dmp	Gandcrab
behavioral2/memory/4696-4-0x0000000000400000-0x0000000000428000-memory.dmp	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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\krgtcsjoyrh = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe"	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_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:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\K:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\N:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\S:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\V:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\W:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\E:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\G:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\I:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\J:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\L:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\P:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\R:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\U:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\Y:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\A:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\O:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\Q:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\T:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\X:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\Z:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\H:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
File opened (read-only)	\??\M:	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_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	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4696 wrote to memory of 3412	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	98
PID 4696 wrote to memory of 3412	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	98
PID 4696 wrote to memory of 3412	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	98
PID 4696 wrote to memory of 1900	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	106
PID 4696 wrote to memory of 1900	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	106
PID 4696 wrote to memory of 1900	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	106
PID 4696 wrote to memory of 2732	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	112
PID 4696 wrote to memory of 2732	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	112
PID 4696 wrote to memory of 2732	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	112
PID 4696 wrote to memory of 4620	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	115
PID 4696 wrote to memory of 4620	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	115
PID 4696 wrote to memory of 4620	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	115
PID 4696 wrote to memory of 3956	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	117
PID 4696 wrote to memory of 3956	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	117
PID 4696 wrote to memory of 3956	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	117
PID 4696 wrote to memory of 3264	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	119
PID 4696 wrote to memory of 3264	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	119
PID 4696 wrote to memory of 3264	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	119
PID 4696 wrote to memory of 1676	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	122
PID 4696 wrote to memory of 1676	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	122
PID 4696 wrote to memory of 1676	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	122
PID 4696 wrote to memory of 4752	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	124
PID 4696 wrote to memory of 4752	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	124
PID 4696 wrote to memory of 4752	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	124
PID 4696 wrote to memory of 2584	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	128
PID 4696 wrote to memory of 2584	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	128
PID 4696 wrote to memory of 2584	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	128
PID 4696 wrote to memory of 1408	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	137
PID 4696 wrote to memory of 1408	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	137
PID 4696 wrote to memory of 1408	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	137
PID 4696 wrote to memory of 2880	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	140
PID 4696 wrote to memory of 2880	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	140
PID 4696 wrote to memory of 2880	4696	2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe	140

C:\Users\Admin\AppData\Local\Temp\2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_3dcf82c90c032dc91607717998cc6ba9_gandcrab.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4696
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3412
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1900
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2732
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:4620
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3956
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3264
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1676
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4752
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2584
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1408
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2880

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=3088,i,14310325015283915034,7660943942870463106,262144 --variations-seed-version /prefetch:8
1⤵
PID:3208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4696-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4696-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download