gandcrab | ac245974117b08a67af82eb97f66ffd758c50a5dfba589a0c6a5d79651cddd88

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
23/07/2023, 15:54

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General

Target

NA_NA_119237d57494f2exeexe_JC.exe
Size

145KB
MD5

119237d57494f2ffe226bffc0a8ff5dd
SHA1

38f4889e1dca287d4036691f88cd40ab211cfea1
SHA256

ac245974117b08a67af82eb97f66ffd758c50a5dfba589a0c6a5d79651cddd88
SHA512

7e9ee18e20efb99fbe320c566a1e2dd9cdc956bfe73676aa22e29f89b97065b4c0bf10d5fec5be284efadd877bfb84e04c670cb520cd1d8e5ba05c1681292b87
SSDEEP

3072:vYHVHd2NCMqqDL2/mr3IdE8we0Avu5r++ygLIaagvdCjRv9OtN:vyOqqDL64vdGREz

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/2248-54-0x0000000000400000-0x0000000000428000-memory.dmp	family_gandcrab
behavioral1/memory/2248-58-0x0000000000400000-0x0000000000428000-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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\hpnznkgqtek = "C:\\Users\\Admin\\AppData\\Local\\Temp\\NA_NA_119237d57494f2exeexe_JC.exe"	NA_NA_119237d57494f2exeexe_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-722410544-1258951091-1992882075-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	NA_NA_119237d57494f2exeexe_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:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\E:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\N:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\P:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\A:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\I:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\K:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\L:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\M:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\Q:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\W:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\J:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\S:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\U:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\Z:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\Y:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\G:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\H:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\O:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\R:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\T:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\V:	NA_NA_119237d57494f2exeexe_JC.exe
File opened (read-only)	\??\X:	NA_NA_119237d57494f2exeexe_JC.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	NA_NA_119237d57494f2exeexe_JC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	NA_NA_119237d57494f2exeexe_JC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	NA_NA_119237d57494f2exeexe_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2248	NA_NA_119237d57494f2exeexe_JC.exe
2248	NA_NA_119237d57494f2exeexe_JC.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 3040	2248	NA_NA_119237d57494f2exeexe_JC.exe	30
PID 2248 wrote to memory of 3040	2248	NA_NA_119237d57494f2exeexe_JC.exe	30
PID 2248 wrote to memory of 3040	2248	NA_NA_119237d57494f2exeexe_JC.exe	30
PID 2248 wrote to memory of 3040	2248	NA_NA_119237d57494f2exeexe_JC.exe	30
PID 2248 wrote to memory of 2676	2248	NA_NA_119237d57494f2exeexe_JC.exe	32
PID 2248 wrote to memory of 2676	2248	NA_NA_119237d57494f2exeexe_JC.exe	32
PID 2248 wrote to memory of 2676	2248	NA_NA_119237d57494f2exeexe_JC.exe	32
PID 2248 wrote to memory of 2676	2248	NA_NA_119237d57494f2exeexe_JC.exe	32
PID 2248 wrote to memory of 3024	2248	NA_NA_119237d57494f2exeexe_JC.exe	36
PID 2248 wrote to memory of 3024	2248	NA_NA_119237d57494f2exeexe_JC.exe	36
PID 2248 wrote to memory of 3024	2248	NA_NA_119237d57494f2exeexe_JC.exe	36
PID 2248 wrote to memory of 3024	2248	NA_NA_119237d57494f2exeexe_JC.exe	36
PID 2248 wrote to memory of 2880	2248	NA_NA_119237d57494f2exeexe_JC.exe	38
PID 2248 wrote to memory of 2880	2248	NA_NA_119237d57494f2exeexe_JC.exe	38
PID 2248 wrote to memory of 2880	2248	NA_NA_119237d57494f2exeexe_JC.exe	38
PID 2248 wrote to memory of 2880	2248	NA_NA_119237d57494f2exeexe_JC.exe	38
PID 2248 wrote to memory of 2872	2248	NA_NA_119237d57494f2exeexe_JC.exe	40
PID 2248 wrote to memory of 2872	2248	NA_NA_119237d57494f2exeexe_JC.exe	40
PID 2248 wrote to memory of 2872	2248	NA_NA_119237d57494f2exeexe_JC.exe	40
PID 2248 wrote to memory of 2872	2248	NA_NA_119237d57494f2exeexe_JC.exe	40
PID 2248 wrote to memory of 3016	2248	NA_NA_119237d57494f2exeexe_JC.exe	42
PID 2248 wrote to memory of 3016	2248	NA_NA_119237d57494f2exeexe_JC.exe	42
PID 2248 wrote to memory of 3016	2248	NA_NA_119237d57494f2exeexe_JC.exe	42
PID 2248 wrote to memory of 3016	2248	NA_NA_119237d57494f2exeexe_JC.exe	42
PID 2248 wrote to memory of 2760	2248	NA_NA_119237d57494f2exeexe_JC.exe	44
PID 2248 wrote to memory of 2760	2248	NA_NA_119237d57494f2exeexe_JC.exe	44
PID 2248 wrote to memory of 2760	2248	NA_NA_119237d57494f2exeexe_JC.exe	44
PID 2248 wrote to memory of 2760	2248	NA_NA_119237d57494f2exeexe_JC.exe	44
PID 2248 wrote to memory of 2876	2248	NA_NA_119237d57494f2exeexe_JC.exe	46
PID 2248 wrote to memory of 2876	2248	NA_NA_119237d57494f2exeexe_JC.exe	46
PID 2248 wrote to memory of 2876	2248	NA_NA_119237d57494f2exeexe_JC.exe	46
PID 2248 wrote to memory of 2876	2248	NA_NA_119237d57494f2exeexe_JC.exe	46
PID 2248 wrote to memory of 2732	2248	NA_NA_119237d57494f2exeexe_JC.exe	48
PID 2248 wrote to memory of 2732	2248	NA_NA_119237d57494f2exeexe_JC.exe	48
PID 2248 wrote to memory of 2732	2248	NA_NA_119237d57494f2exeexe_JC.exe	48
PID 2248 wrote to memory of 2732	2248	NA_NA_119237d57494f2exeexe_JC.exe	48
PID 2248 wrote to memory of 2804	2248	NA_NA_119237d57494f2exeexe_JC.exe	50
PID 2248 wrote to memory of 2804	2248	NA_NA_119237d57494f2exeexe_JC.exe	50
PID 2248 wrote to memory of 2804	2248	NA_NA_119237d57494f2exeexe_JC.exe	50
PID 2248 wrote to memory of 2804	2248	NA_NA_119237d57494f2exeexe_JC.exe	50
PID 2248 wrote to memory of 2796	2248	NA_NA_119237d57494f2exeexe_JC.exe	52
PID 2248 wrote to memory of 2796	2248	NA_NA_119237d57494f2exeexe_JC.exe	52
PID 2248 wrote to memory of 2796	2248	NA_NA_119237d57494f2exeexe_JC.exe	52
PID 2248 wrote to memory of 2796	2248	NA_NA_119237d57494f2exeexe_JC.exe	52
PID 2248 wrote to memory of 1880	2248	NA_NA_119237d57494f2exeexe_JC.exe	54
PID 2248 wrote to memory of 1880	2248	NA_NA_119237d57494f2exeexe_JC.exe	54
PID 2248 wrote to memory of 1880	2248	NA_NA_119237d57494f2exeexe_JC.exe	54
PID 2248 wrote to memory of 1880	2248	NA_NA_119237d57494f2exeexe_JC.exe	54
PID 2248 wrote to memory of 1332	2248	NA_NA_119237d57494f2exeexe_JC.exe	56
PID 2248 wrote to memory of 1332	2248	NA_NA_119237d57494f2exeexe_JC.exe	56
PID 2248 wrote to memory of 1332	2248	NA_NA_119237d57494f2exeexe_JC.exe	56
PID 2248 wrote to memory of 1332	2248	NA_NA_119237d57494f2exeexe_JC.exe	56
PID 2248 wrote to memory of 1548	2248	NA_NA_119237d57494f2exeexe_JC.exe	58
PID 2248 wrote to memory of 1548	2248	NA_NA_119237d57494f2exeexe_JC.exe	58
PID 2248 wrote to memory of 1548	2248	NA_NA_119237d57494f2exeexe_JC.exe	58
PID 2248 wrote to memory of 1548	2248	NA_NA_119237d57494f2exeexe_JC.exe	58
PID 2248 wrote to memory of 1324	2248	NA_NA_119237d57494f2exeexe_JC.exe	60
PID 2248 wrote to memory of 1324	2248	NA_NA_119237d57494f2exeexe_JC.exe	60
PID 2248 wrote to memory of 1324	2248	NA_NA_119237d57494f2exeexe_JC.exe	60
PID 2248 wrote to memory of 1324	2248	NA_NA_119237d57494f2exeexe_JC.exe	60

C:\Users\Admin\AppData\Local\Temp\NA_NA_119237d57494f2exeexe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NA_NA_119237d57494f2exeexe_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3040
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2676
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3024
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2880
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2872
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3016
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2760
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2876
- 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:2804
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:2796
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1880
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1332
- C:\Windows\SysWOW64\nslookup.exe
  nslookup emsisoft.bit dns1.soprodns.ru
  2⤵
  PID:1548
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1324

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/2248-54-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2248-58-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download