gandcrab | 370c526f43aa745d73395d667b1a6784e782b212904263562602dccbe3a49cf1

Analysis

max time kernel
142s
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
25/08/2023, 14:35

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General

Target

961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
Size

145KB
MD5

961c5a33498bf70121cb9fd45636be25
SHA1

ed0ffb0a3795dd048f55e30fa5da978342997828
SHA256

370c526f43aa745d73395d667b1a6784e782b212904263562602dccbe3a49cf1
SHA512

2189e9ecf39437d9030b5731b4ab61f3979169aeb65f6f5394699d5c37223c62c2d7566e3e77d45d1a6db79bb9711a02eb64ee51ca49f20592668da4580fd0bb
SSDEEP

3072:4YHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:4yOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral2/memory/5100-0-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral2/memory/5100-4-0x0000000000400000-0x0000000000428000-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-1-5-21-3011986978-2180659500-3669311805-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\ytbwhvsrlkb = "C:\\Users\\Admin\\AppData\\Local\\Temp\\961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe"	961c5a33498bf70121cb9fd45636be25_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)	\??\R:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\V:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\X:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\Y:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\B:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\E:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\I:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\K:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\Q:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\T:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\N:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\P:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\S:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\U:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\G:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\H:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\L:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\M:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\W:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\A:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\J:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\O:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
File opened (read-only)	\??\Z:	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 5020	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	81
PID 5100 wrote to memory of 5020	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	81
PID 5100 wrote to memory of 5020	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	81
PID 5100 wrote to memory of 3164	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	87
PID 5100 wrote to memory of 3164	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	87
PID 5100 wrote to memory of 3164	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	87
PID 5100 wrote to memory of 432	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	92
PID 5100 wrote to memory of 432	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	92
PID 5100 wrote to memory of 432	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	92
PID 5100 wrote to memory of 3696	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	95
PID 5100 wrote to memory of 3696	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	95
PID 5100 wrote to memory of 3696	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	95
PID 5100 wrote to memory of 4932	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	97
PID 5100 wrote to memory of 4932	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	97
PID 5100 wrote to memory of 4932	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	97
PID 5100 wrote to memory of 2604	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	99
PID 5100 wrote to memory of 2604	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	99
PID 5100 wrote to memory of 2604	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	99
PID 5100 wrote to memory of 1612	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	101
PID 5100 wrote to memory of 1612	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	101
PID 5100 wrote to memory of 1612	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	101
PID 5100 wrote to memory of 5112	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	103
PID 5100 wrote to memory of 5112	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	103
PID 5100 wrote to memory of 5112	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	103
PID 5100 wrote to memory of 1292	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	105
PID 5100 wrote to memory of 1292	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	105
PID 5100 wrote to memory of 1292	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	105
PID 5100 wrote to memory of 3512	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	107
PID 5100 wrote to memory of 3512	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	107
PID 5100 wrote to memory of 3512	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	107
PID 5100 wrote to memory of 2304	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	109
PID 5100 wrote to memory of 2304	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	109
PID 5100 wrote to memory of 2304	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	109
PID 5100 wrote to memory of 2092	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	111
PID 5100 wrote to memory of 2092	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	111
PID 5100 wrote to memory of 2092	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	111
PID 5100 wrote to memory of 1828	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	113
PID 5100 wrote to memory of 1828	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	113
PID 5100 wrote to memory of 1828	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	113
PID 5100 wrote to memory of 3896	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	115
PID 5100 wrote to memory of 3896	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	115
PID 5100 wrote to memory of 3896	5100	961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe	115

C:\Users\Admin\AppData\Local\Temp\961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe
"C:\Users\Admin\AppData\Local\Temp\961c5a33498bf70121cb9fd45636be25_gandcrab_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5100
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:5020
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3164
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:432
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3696
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:4932
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2604
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1612
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:5112
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1292
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3512
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2304
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2092
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1828
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:3896

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/5100-0-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/5100-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download