gandcrab | 6094e9d385cee77985ef550b05ad7cc77659e10e70ccbd007e5505e54aa33867

Analysis

max time kernel
141s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-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
behavioral2/memory/2988-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/2988-4-0x0000000000400000-0x0000000000428000-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-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\djjpgjccrsv = "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)	\??\B:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\I:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\O:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\R:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\Y:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\W:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\J:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\L:	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)	\??\U:	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)	\??\G:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\H:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\V:	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)	\??\K:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\N:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\P:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\Q:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
File opened (read-only)	\??\T:	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe
2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 3376	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	82
PID 2988 wrote to memory of 3376	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	82
PID 2988 wrote to memory of 3376	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	82
PID 2988 wrote to memory of 5076	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	91
PID 2988 wrote to memory of 5076	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	91
PID 2988 wrote to memory of 5076	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	91
PID 2988 wrote to memory of 1448	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	93
PID 2988 wrote to memory of 1448	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	93
PID 2988 wrote to memory of 1448	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	93
PID 2988 wrote to memory of 960	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	96
PID 2988 wrote to memory of 960	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	96
PID 2988 wrote to memory of 960	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	96
PID 2988 wrote to memory of 4124	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	98
PID 2988 wrote to memory of 4124	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	98
PID 2988 wrote to memory of 4124	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	98
PID 2988 wrote to memory of 3880	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	100
PID 2988 wrote to memory of 3880	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	100
PID 2988 wrote to memory of 3880	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	100
PID 2988 wrote to memory of 5108	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	102
PID 2988 wrote to memory of 5108	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	102
PID 2988 wrote to memory of 5108	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	102
PID 2988 wrote to memory of 756	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	104
PID 2988 wrote to memory of 756	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	104
PID 2988 wrote to memory of 756	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	104
PID 2988 wrote to memory of 1280	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	106
PID 2988 wrote to memory of 1280	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	106
PID 2988 wrote to memory of 1280	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	106
PID 2988 wrote to memory of 3636	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	108
PID 2988 wrote to memory of 3636	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	108
PID 2988 wrote to memory of 3636	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	108
PID 2988 wrote to memory of 1848	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	111
PID 2988 wrote to memory of 1848	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	111
PID 2988 wrote to memory of 1848	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	111
PID 2988 wrote to memory of 4848	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	112
PID 2988 wrote to memory of 4848	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	112
PID 2988 wrote to memory of 4848	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	112
PID 2988 wrote to memory of 3488	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	114
PID 2988 wrote to memory of 3488	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	114
PID 2988 wrote to memory of 3488	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	114
PID 2988 wrote to memory of 4292	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	116
PID 2988 wrote to memory of 4292	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	116
PID 2988 wrote to memory of 4292	2988	c5fa192de5877e85377067795570e7d3_gandcrab_JC.exe	116

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:2988
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3376
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:5076
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1448
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:960
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4124
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3880
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:5108
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:756
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1280
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3636
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1848
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4848
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3488
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4292

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/2988-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2988-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download