gandcrab | 6094e9d385cee77985ef550b05ad7cc77659e10e70ccbd007e5505e54aa33867

Analysis

max time kernel
142s
max time network
145s
platform
windows7_x64
resource
win7-20230824-en
resource tags

arch:x64arch:x86image:win7-20230824-enlocale:en-usos:windows7-x64system
submitted
28/08/2023, 18:25

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General

Target

c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
Size

145KB
MD5

c5fa192de5877e85377067795570e7d3
SHA1

ed34685bf1539b984faa9484af53d4e6d1c0bcaf
SHA256

6094e9d385cee77985ef550b05ad7cc77659e10e70ccbd007e5505e54aa33867
SHA512

fcfd8d57ec8136319672026ab8330980cfb352ea3ef5f5483e530d4e31c4fbe1f75febcdbe2360ef23f45302fd6b768a29b11279de15f234fa37b0f974a970d9
SSDEEP

3072:RYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:RyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/2268-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral1/memory/2268-4-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor 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-1-5-21-1528014236-771305907-3973026625-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\taqzgbwtufk = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe"	c5fa192de5877e85377067795570e7d3_gandcrab_JC.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)	\??\G:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\P:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\R:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\X:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\Z:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\A:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\E:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\H:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\K:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\L:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\U:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\B:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\I:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\N:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\O:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\Q:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\W:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\Y:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\J:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\M:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\S:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\T:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\V:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 1908	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	32
PID 2268 wrote to memory of 1908	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	32
PID 2268 wrote to memory of 1908	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	32
PID 2268 wrote to memory of 1908	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	32
PID 2268 wrote to memory of 2692	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	34
PID 2268 wrote to memory of 2692	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	34
PID 2268 wrote to memory of 2692	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	34
PID 2268 wrote to memory of 2692	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	34
PID 2268 wrote to memory of 2836	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	36
PID 2268 wrote to memory of 2836	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	36
PID 2268 wrote to memory of 2836	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	36
PID 2268 wrote to memory of 2836	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	36
PID 2268 wrote to memory of 2756	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	38
PID 2268 wrote to memory of 2756	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	38
PID 2268 wrote to memory of 2756	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	38
PID 2268 wrote to memory of 2756	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	38
PID 2268 wrote to memory of 2804	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	40
PID 2268 wrote to memory of 2804	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	40
PID 2268 wrote to memory of 2804	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	40
PID 2268 wrote to memory of 2804	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	40
PID 2268 wrote to memory of 2800	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	42
PID 2268 wrote to memory of 2800	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	42
PID 2268 wrote to memory of 2800	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	42
PID 2268 wrote to memory of 2800	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	42
PID 2268 wrote to memory of 2688	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	44
PID 2268 wrote to memory of 2688	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	44
PID 2268 wrote to memory of 2688	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	44
PID 2268 wrote to memory of 2688	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	44
PID 2268 wrote to memory of 2736	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	46
PID 2268 wrote to memory of 2736	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	46
PID 2268 wrote to memory of 2736	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	46
PID 2268 wrote to memory of 2736	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	46
PID 2268 wrote to memory of 2612	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	48
PID 2268 wrote to memory of 2612	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	48
PID 2268 wrote to memory of 2612	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	48
PID 2268 wrote to memory of 2612	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	48
PID 2268 wrote to memory of 2720	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	50
PID 2268 wrote to memory of 2720	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	50
PID 2268 wrote to memory of 2720	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	50
PID 2268 wrote to memory of 2720	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	50
PID 2268 wrote to memory of 2316	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	52
PID 2268 wrote to memory of 2316	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	52
PID 2268 wrote to memory of 2316	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	52
PID 2268 wrote to memory of 2316	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	52
PID 2268 wrote to memory of 2540	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	54
PID 2268 wrote to memory of 2540	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	54
PID 2268 wrote to memory of 2540	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	54
PID 2268 wrote to memory of 2540	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	54
PID 2268 wrote to memory of 1772	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	56
PID 2268 wrote to memory of 1772	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	56
PID 2268 wrote to memory of 1772	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	56
PID 2268 wrote to memory of 1772	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	56
PID 2268 wrote to memory of 2504	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	59
PID 2268 wrote to memory of 2504	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	59
PID 2268 wrote to memory of 2504	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	59
PID 2268 wrote to memory of 2504	2268	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	59

C:\Users\Admin\AppData\Local\Temp\c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
"C:\Users\Admin\AppData\Local\Temp\c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1908
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2692
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2836
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2756
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2804
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2800
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2688
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2736
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2612
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2720
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2316
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2540
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1772
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2504

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/2268-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2268-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download