gandcrab | aa38942ee37efd52e1ac5791d1197f5db06f14ad8a502a78b8ce4e420e39dce2

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
06-08-2023 10:21

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General

Target

7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
Size

145KB
MD5

7faa016b3c7715b291259ae78d618026
SHA1

dd76aa8cbec95d060208a5aebc167549564b2b47
SHA256

aa38942ee37efd52e1ac5791d1197f5db06f14ad8a502a78b8ce4e420e39dce2
SHA512

ca2d581e44c17d7da7d924dd46cd67ab7b7f5eff99783a74647e41992e1a7c5acaef9a2c604aa0bfea7c538c30d3a43b10f6b750ec6f9b00d9edf408dae7f91b
SSDEEP

3072:MYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:MyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/4740-133-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/4740-137-0x0000000000400000-0x0000000000428000-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-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\hpvzskbqeij = "C:\\Users\\Admin\\AppData\\Local\\Temp\\7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe"	7faa016b3c7715b291259ae78d618026_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)	\??\A:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\E:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\G:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\K:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\Q:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\S:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\X:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\Y:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\I:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\J:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\M:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\R:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\Z:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\B:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\L:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\N:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\P:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\T:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\U:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\W:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\H:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\O:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
File opened (read-only)	\??\V:	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 4740 wrote to memory of 2736	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	82
PID 4740 wrote to memory of 2736	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	82
PID 4740 wrote to memory of 2736	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	82
PID 4740 wrote to memory of 1716	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	91
PID 4740 wrote to memory of 1716	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	91
PID 4740 wrote to memory of 1716	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	91
PID 4740 wrote to memory of 4896	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	93
PID 4740 wrote to memory of 4896	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	93
PID 4740 wrote to memory of 4896	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	93
PID 4740 wrote to memory of 3376	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	96
PID 4740 wrote to memory of 3376	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	96
PID 4740 wrote to memory of 3376	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	96
PID 4740 wrote to memory of 2540	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	98
PID 4740 wrote to memory of 2540	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	98
PID 4740 wrote to memory of 2540	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	98
PID 4740 wrote to memory of 5048	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	100
PID 4740 wrote to memory of 5048	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	100
PID 4740 wrote to memory of 5048	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	100
PID 4740 wrote to memory of 2964	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	102
PID 4740 wrote to memory of 2964	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	102
PID 4740 wrote to memory of 2964	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	102
PID 4740 wrote to memory of 4112	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	104
PID 4740 wrote to memory of 4112	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	104
PID 4740 wrote to memory of 4112	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	104
PID 4740 wrote to memory of 4280	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	106
PID 4740 wrote to memory of 4280	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	106
PID 4740 wrote to memory of 4280	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	106
PID 4740 wrote to memory of 1520	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	108
PID 4740 wrote to memory of 1520	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	108
PID 4740 wrote to memory of 1520	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	108
PID 4740 wrote to memory of 820	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	110
PID 4740 wrote to memory of 820	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	110
PID 4740 wrote to memory of 820	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	110
PID 4740 wrote to memory of 116	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	112
PID 4740 wrote to memory of 116	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	112
PID 4740 wrote to memory of 116	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	112
PID 4740 wrote to memory of 2652	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	114
PID 4740 wrote to memory of 2652	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	114
PID 4740 wrote to memory of 2652	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	114
PID 4740 wrote to memory of 2432	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	116
PID 4740 wrote to memory of 2432	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	116
PID 4740 wrote to memory of 2432	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	116
PID 4740 wrote to memory of 4660	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	118
PID 4740 wrote to memory of 4660	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	118
PID 4740 wrote to memory of 4660	4740	7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe	118

C:\Users\Admin\AppData\Local\Temp\7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe
"C:\Users\Admin\AppData\Local\Temp\7faa016b3c7715b291259ae78d618026_gandcrab_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2736
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1716
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4896
- 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:2540
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:5048
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2964
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4112
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4280
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1520
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:820
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:116
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2652
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2432
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:4660

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/4740-133-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4740-137-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download