gandcrab | 7e72ec0fd0bef70368df45ea039c7f4b8aba55969d99b1e531b65b9356675b86

Analysis

max time kernel
158s
max time network
171s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
09/07/2023, 11:12

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General

Target

93f1059dac0c6cexeexeexeex.exe
Size

126KB
MD5

93f1059dac0c6cf2c479fb0082b8abd4
SHA1

501bce59628a1bf50bb5c019c0c598d261c00030
SHA256

7e72ec0fd0bef70368df45ea039c7f4b8aba55969d99b1e531b65b9356675b86
SHA512

2449600547c414d619fb5bc95058a0b89480b8ad9a34b82350a81a213b4c575754747dba0ab65bb20247ac67ea25637a480ae1398fe8306c8b14ee094b04e3e1
SSDEEP

1536:gZZZZZZZZZZZZpXzzzzzzzzzzzzV9rXounV98hbHnAEMqqU+2bbbAV2/S2LNmHks:OBounVyFHFMqqDL2/LgHkc2oYvQd2a

Score

10^/10

gandcrab backdoor persistence ransomware upx

Malware Config

Signatures

GandCrab payload 2 IoCs

resource	yara_rule
behavioral1/memory/1152-54-0x000000000F380000-0x000000000F39B000-memory.dmp	family_gandcrab
behavioral1/memory/1152-58-0x000000000F380000-0x000000000F39B000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1152-54-0x000000000F380000-0x000000000F39B000-memory.dmp	upx
behavioral1/memory/1152-58-0x000000000F380000-0x000000000F39B000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\hhmztlrgppe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\93f1059dac0c6cexeexeexeex.exe"	93f1059dac0c6cexeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	93f1059dac0c6cexeexeexeex.exe

Enumerates connected drives 3 TTPs 24 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)	\??\F:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\H:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\J:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\W:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\X:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\E:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\M:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\N:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\O:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\R:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\S:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\T:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\U:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\V:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\Y:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\Z:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\A:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\B:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\I:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\K:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\L:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\Q:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\G:	93f1059dac0c6cexeexeexeex.exe
File opened (read-only)	\??\P:	93f1059dac0c6cexeexeexeex.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	93f1059dac0c6cexeexeexeex.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	93f1059dac0c6cexeexeexeex.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	93f1059dac0c6cexeexeexeex.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1152	93f1059dac0c6cexeexeexeex.exe
1152	93f1059dac0c6cexeexeexeex.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 1948	1152	93f1059dac0c6cexeexeexeex.exe	30
PID 1152 wrote to memory of 1948	1152	93f1059dac0c6cexeexeexeex.exe	30
PID 1152 wrote to memory of 1948	1152	93f1059dac0c6cexeexeexeex.exe	30
PID 1152 wrote to memory of 1948	1152	93f1059dac0c6cexeexeexeex.exe	30
PID 1152 wrote to memory of 2096	1152	93f1059dac0c6cexeexeexeex.exe	32
PID 1152 wrote to memory of 2096	1152	93f1059dac0c6cexeexeexeex.exe	32
PID 1152 wrote to memory of 2096	1152	93f1059dac0c6cexeexeexeex.exe	32
PID 1152 wrote to memory of 2096	1152	93f1059dac0c6cexeexeexeex.exe	32
PID 1152 wrote to memory of 2120	1152	93f1059dac0c6cexeexeexeex.exe	34
PID 1152 wrote to memory of 2120	1152	93f1059dac0c6cexeexeexeex.exe	34
PID 1152 wrote to memory of 2120	1152	93f1059dac0c6cexeexeexeex.exe	34
PID 1152 wrote to memory of 2120	1152	93f1059dac0c6cexeexeexeex.exe	34
PID 1152 wrote to memory of 3004	1152	93f1059dac0c6cexeexeexeex.exe	36
PID 1152 wrote to memory of 3004	1152	93f1059dac0c6cexeexeexeex.exe	36
PID 1152 wrote to memory of 3004	1152	93f1059dac0c6cexeexeexeex.exe	36
PID 1152 wrote to memory of 3004	1152	93f1059dac0c6cexeexeexeex.exe	36
PID 1152 wrote to memory of 1752	1152	93f1059dac0c6cexeexeexeex.exe	38
PID 1152 wrote to memory of 1752	1152	93f1059dac0c6cexeexeexeex.exe	38
PID 1152 wrote to memory of 1752	1152	93f1059dac0c6cexeexeexeex.exe	38
PID 1152 wrote to memory of 1752	1152	93f1059dac0c6cexeexeexeex.exe	38
PID 1152 wrote to memory of 2192	1152	93f1059dac0c6cexeexeexeex.exe	40
PID 1152 wrote to memory of 2192	1152	93f1059dac0c6cexeexeexeex.exe	40
PID 1152 wrote to memory of 2192	1152	93f1059dac0c6cexeexeexeex.exe	40
PID 1152 wrote to memory of 2192	1152	93f1059dac0c6cexeexeexeex.exe	40
PID 1152 wrote to memory of 2228	1152	93f1059dac0c6cexeexeexeex.exe	42
PID 1152 wrote to memory of 2228	1152	93f1059dac0c6cexeexeexeex.exe	42
PID 1152 wrote to memory of 2228	1152	93f1059dac0c6cexeexeexeex.exe	42
PID 1152 wrote to memory of 2228	1152	93f1059dac0c6cexeexeexeex.exe	42
PID 1152 wrote to memory of 792	1152	93f1059dac0c6cexeexeexeex.exe	44
PID 1152 wrote to memory of 792	1152	93f1059dac0c6cexeexeexeex.exe	44
PID 1152 wrote to memory of 792	1152	93f1059dac0c6cexeexeexeex.exe	44
PID 1152 wrote to memory of 792	1152	93f1059dac0c6cexeexeexeex.exe	44
PID 1152 wrote to memory of 1184	1152	93f1059dac0c6cexeexeexeex.exe	46
PID 1152 wrote to memory of 1184	1152	93f1059dac0c6cexeexeexeex.exe	46
PID 1152 wrote to memory of 1184	1152	93f1059dac0c6cexeexeexeex.exe	46
PID 1152 wrote to memory of 1184	1152	93f1059dac0c6cexeexeexeex.exe	46
PID 1152 wrote to memory of 2064	1152	93f1059dac0c6cexeexeexeex.exe	48
PID 1152 wrote to memory of 2064	1152	93f1059dac0c6cexeexeexeex.exe	48
PID 1152 wrote to memory of 2064	1152	93f1059dac0c6cexeexeexeex.exe	48
PID 1152 wrote to memory of 2064	1152	93f1059dac0c6cexeexeexeex.exe	48
PID 1152 wrote to memory of 2560	1152	93f1059dac0c6cexeexeexeex.exe	50
PID 1152 wrote to memory of 2560	1152	93f1059dac0c6cexeexeexeex.exe	50
PID 1152 wrote to memory of 2560	1152	93f1059dac0c6cexeexeexeex.exe	50
PID 1152 wrote to memory of 2560	1152	93f1059dac0c6cexeexeexeex.exe	50
PID 1152 wrote to memory of 2276	1152	93f1059dac0c6cexeexeexeex.exe	52
PID 1152 wrote to memory of 2276	1152	93f1059dac0c6cexeexeexeex.exe	52
PID 1152 wrote to memory of 2276	1152	93f1059dac0c6cexeexeexeex.exe	52
PID 1152 wrote to memory of 2276	1152	93f1059dac0c6cexeexeexeex.exe	52
PID 1152 wrote to memory of 2736	1152	93f1059dac0c6cexeexeexeex.exe	54
PID 1152 wrote to memory of 2736	1152	93f1059dac0c6cexeexeexeex.exe	54
PID 1152 wrote to memory of 2736	1152	93f1059dac0c6cexeexeexeex.exe	54
PID 1152 wrote to memory of 2736	1152	93f1059dac0c6cexeexeexeex.exe	54
PID 1152 wrote to memory of 2724	1152	93f1059dac0c6cexeexeexeex.exe	56
PID 1152 wrote to memory of 2724	1152	93f1059dac0c6cexeexeexeex.exe	56
PID 1152 wrote to memory of 2724	1152	93f1059dac0c6cexeexeexeex.exe	56
PID 1152 wrote to memory of 2724	1152	93f1059dac0c6cexeexeexeex.exe	56
PID 1152 wrote to memory of 2476	1152	93f1059dac0c6cexeexeexeex.exe	58
PID 1152 wrote to memory of 2476	1152	93f1059dac0c6cexeexeexeex.exe	58
PID 1152 wrote to memory of 2476	1152	93f1059dac0c6cexeexeexeex.exe	58
PID 1152 wrote to memory of 2476	1152	93f1059dac0c6cexeexeexeex.exe	58
PID 1152 wrote to memory of 2900	1152	93f1059dac0c6cexeexeexeex.exe	60
PID 1152 wrote to memory of 2900	1152	93f1059dac0c6cexeexeexeex.exe	60
PID 1152 wrote to memory of 2900	1152	93f1059dac0c6cexeexeexeex.exe	60
PID 1152 wrote to memory of 2900	1152	93f1059dac0c6cexeexeexeex.exe	60

C:\Users\Admin\AppData\Local\Temp\93f1059dac0c6cexeexeexeex.exe
"C:\Users\Admin\AppData\Local\Temp\93f1059dac0c6cexeexeexeex.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:1948
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2096
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:2120
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:3004
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:1752
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2192
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:2228
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:792
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:1184
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:2064
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:2560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2276
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:2736
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2724
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:2476
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:2900
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:2496
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2604
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:2580
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2484
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:2544
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:2916
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:2000
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:984
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:2700
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1180
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:1832
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:2536
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:1008
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2660
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:1444
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1308
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:1800
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:2848
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:2792
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2840
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:844
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2076
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:1192
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:1648
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:564
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:572
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:1212
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:916
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:2952
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:2376
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:1884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:1920
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:864
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2060
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:1504
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:2384
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:2124
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:3056
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:2044
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:1696
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:696
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:996
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:2988
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2360
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:2880
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:2936
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:2896
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:2744
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:2764
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:2636
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:2524
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns1.soprodns.ru
  2⤵
  PID:3052
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns2.soprodns.ru
  2⤵
  PID:2084
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns2.soprodns.ru
  2⤵
  PID:1596
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.bit dns2.soprodns.ru
  2⤵
  PID:944
- C:\Windows\SysWOW64\nslookup.exe
  nslookup gandcrab.bit dns1.soprodns.ru
  2⤵
  PID:884
- C:\Windows\SysWOW64\nslookup.exe
  nslookup nomoreransom.coin dns1.soprodns.ru
  2⤵
  PID:276

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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

Loading Replay Monitor...

Downloads

memory/1152-54-0x000000000F380000-0x000000000F39B000-memory.dmp

Filesize
108KB

Download
memory/1152-58-0x000000000F380000-0x000000000F39B000-memory.dmp

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