gandcrab | fec31f125b3e9c0bb6c3da788fc137f3ca436b7740a8a16f8132a408672905d5

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
24-08-2023 15:18

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General

Target

80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
Size

284KB
MD5

80e56a33dc8caab647f8aa085a0b11af
SHA1

f1a48ca3c22ec80f2ced0a1463a5e90809953b3d
SHA256

fec31f125b3e9c0bb6c3da788fc137f3ca436b7740a8a16f8132a408672905d5
SHA512

04ce2c80d278938fce4591138ef6cf7ace1bc0abfd01aa939a0d8aae4b65161215a4c47642f546cd905ef0dbdd7e2fc8ca25eee83420e23f40b2c146d3f2a97f
SSDEEP

6144:iyU2CJ80Vt8P49BTjsncBuMZ560KNWlpX7UKBJTXE6eEW:ia0t8PY8Cuy56nNew2J2R

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2440-3-0x0000000000400000-0x000000000044D000-memory.dmp	family_gandcrab
behavioral1/memory/2440-5-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab
behavioral1/memory/2440-13-0x0000000000400000-0x000000000044D000-memory.dmp	family_gandcrab
behavioral1/memory/2440-15-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab

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

Unexpected DNS network traffic destination 64 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67
Destination IP	35.205.61.67

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\tennlhtptwb = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\jhdvau.exe\""	80e56a33dc8caab647f8aa085a0b11af_mafia_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)	\??\K:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\R:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\X:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\Y:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\A:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\B:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\O:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\S:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\T:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\U:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\Z:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\J:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\M:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\N:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\P:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\W:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\E:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\H:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\L:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\Q:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\V:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\G:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
File opened (read-only)	\??\I:	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 2604	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	28
PID 2440 wrote to memory of 2604	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	28
PID 2440 wrote to memory of 2604	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	28
PID 2440 wrote to memory of 2604	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	28
PID 2440 wrote to memory of 1644	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	32
PID 2440 wrote to memory of 1644	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	32
PID 2440 wrote to memory of 1644	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	32
PID 2440 wrote to memory of 1644	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	32
PID 2440 wrote to memory of 2560	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	34
PID 2440 wrote to memory of 2560	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	34
PID 2440 wrote to memory of 2560	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	34
PID 2440 wrote to memory of 2560	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	34
PID 2440 wrote to memory of 2948	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	36
PID 2440 wrote to memory of 2948	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	36
PID 2440 wrote to memory of 2948	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	36
PID 2440 wrote to memory of 2948	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	36
PID 2440 wrote to memory of 2944	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	38
PID 2440 wrote to memory of 2944	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	38
PID 2440 wrote to memory of 2944	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	38
PID 2440 wrote to memory of 2944	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	38
PID 2440 wrote to memory of 2920	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	40
PID 2440 wrote to memory of 2920	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	40
PID 2440 wrote to memory of 2920	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	40
PID 2440 wrote to memory of 2920	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	40
PID 2440 wrote to memory of 2728	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	42
PID 2440 wrote to memory of 2728	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	42
PID 2440 wrote to memory of 2728	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	42
PID 2440 wrote to memory of 2728	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	42
PID 2440 wrote to memory of 2756	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	44
PID 2440 wrote to memory of 2756	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	44
PID 2440 wrote to memory of 2756	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	44
PID 2440 wrote to memory of 2756	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	44
PID 2440 wrote to memory of 2744	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	46
PID 2440 wrote to memory of 2744	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	46
PID 2440 wrote to memory of 2744	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	46
PID 2440 wrote to memory of 2744	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	46
PID 2440 wrote to memory of 2972	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	48
PID 2440 wrote to memory of 2972	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	48
PID 2440 wrote to memory of 2972	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	48
PID 2440 wrote to memory of 2972	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	48
PID 2440 wrote to memory of 2764	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	50
PID 2440 wrote to memory of 2764	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	50
PID 2440 wrote to memory of 2764	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	50
PID 2440 wrote to memory of 2764	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	50
PID 2440 wrote to memory of 2544	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	52
PID 2440 wrote to memory of 2544	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	52
PID 2440 wrote to memory of 2544	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	52
PID 2440 wrote to memory of 2544	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	52
PID 2440 wrote to memory of 1884	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	54
PID 2440 wrote to memory of 1884	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	54
PID 2440 wrote to memory of 1884	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	54
PID 2440 wrote to memory of 1884	2440	80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe	54

C:\Users\Admin\AppData\Local\Temp\80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe
"C:\Users\Admin\AppData\Local\Temp\80e56a33dc8caab647f8aa085a0b11af_mafia_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2604
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1644
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2948
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2944
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2920
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2728
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2756
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2744
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2972
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2764
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2544
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1884

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/2440-1-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2440-2-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2440-3-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2440-5-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2440-12-0x0000000000510000-0x0000000000610000-memory.dmp

Filesize
1024KB

Download
memory/2440-13-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/2440-15-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download