gandcrab | fa5a3dc5eb41fb038a3a00dae0de2e7375ad0f6dad6e6905e2b090126f52ec16

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, 19:38

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General

Target

8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
Size

324KB
MD5

8c24c988953924a17e6b650782bf8bdf
SHA1

cfbe25f6e2d179018077064ff67d9b29cfeafb9d
SHA256

fa5a3dc5eb41fb038a3a00dae0de2e7375ad0f6dad6e6905e2b090126f52ec16
SHA512

7cd872cdee591de414c72a9290fef9a23081a52bc3e1cfebbf00366ff91f50af76209b727ad263a4f0fa46e9759f527d38188f4da255ca47b00f5794f54306fb
SSDEEP

6144:XPsEWCfi9enk8BW5iFLUNsPaaxPu0Q0vwGpEU1:XPs8fi9MW5MYYaynQ1Gpl1

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2316-4-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab
behavioral1/memory/2316-3-0x0000000000400000-0x00000000012D6000-memory.dmp	family_gandcrab
behavioral1/memory/2316-12-0x0000000000400000-0x00000000012D6000-memory.dmp	family_gandcrab
behavioral1/memory/2316-14-0x0000000000220000-0x0000000000237000-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\ymrztheiwaw = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\mxnsrw.exe\""	8c24c988953924a17e6b650782bf8bdf_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)	\??\H:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\T:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\V:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\W:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\E:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\K:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\O:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\Y:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\M:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\R:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\U:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\I:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\J:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\L:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\N:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\P:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\A:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\B:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\G:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\Z:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\Q:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\S:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
File opened (read-only)	\??\X:	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2532	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	28
PID 2316 wrote to memory of 2532	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	28
PID 2316 wrote to memory of 2532	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	28
PID 2316 wrote to memory of 2532	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	28
PID 2316 wrote to memory of 2808	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	30
PID 2316 wrote to memory of 2808	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	30
PID 2316 wrote to memory of 2808	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	30
PID 2316 wrote to memory of 2808	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	30
PID 2316 wrote to memory of 2976	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	34
PID 2316 wrote to memory of 2976	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	34
PID 2316 wrote to memory of 2976	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	34
PID 2316 wrote to memory of 2976	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	34
PID 2316 wrote to memory of 2300	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	36
PID 2316 wrote to memory of 2300	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	36
PID 2316 wrote to memory of 2300	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	36
PID 2316 wrote to memory of 2300	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	36
PID 2316 wrote to memory of 2748	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	38
PID 2316 wrote to memory of 2748	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	38
PID 2316 wrote to memory of 2748	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	38
PID 2316 wrote to memory of 2748	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	38
PID 2316 wrote to memory of 2712	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	40
PID 2316 wrote to memory of 2712	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	40
PID 2316 wrote to memory of 2712	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	40
PID 2316 wrote to memory of 2712	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	40
PID 2316 wrote to memory of 2824	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	42
PID 2316 wrote to memory of 2824	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	42
PID 2316 wrote to memory of 2824	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	42
PID 2316 wrote to memory of 2824	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	42
PID 2316 wrote to memory of 1272	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	44
PID 2316 wrote to memory of 1272	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	44
PID 2316 wrote to memory of 1272	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	44
PID 2316 wrote to memory of 1272	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	44
PID 2316 wrote to memory of 1480	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	46
PID 2316 wrote to memory of 1480	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	46
PID 2316 wrote to memory of 1480	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	46
PID 2316 wrote to memory of 1480	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	46
PID 2316 wrote to memory of 3032	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	48
PID 2316 wrote to memory of 3032	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	48
PID 2316 wrote to memory of 3032	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	48
PID 2316 wrote to memory of 3032	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	48
PID 2316 wrote to memory of 1500	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	50
PID 2316 wrote to memory of 1500	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	50
PID 2316 wrote to memory of 1500	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	50
PID 2316 wrote to memory of 1500	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	50
PID 2316 wrote to memory of 2040	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	52
PID 2316 wrote to memory of 2040	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	52
PID 2316 wrote to memory of 2040	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	52
PID 2316 wrote to memory of 2040	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	52
PID 2316 wrote to memory of 1976	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	54
PID 2316 wrote to memory of 1976	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	54
PID 2316 wrote to memory of 1976	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	54
PID 2316 wrote to memory of 1976	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	54
PID 2316 wrote to memory of 1248	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	56
PID 2316 wrote to memory of 1248	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	56
PID 2316 wrote to memory of 1248	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	56
PID 2316 wrote to memory of 1248	2316	8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe	56

C:\Users\Admin\AppData\Local\Temp\8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe
"C:\Users\Admin\AppData\Local\Temp\8c24c988953924a17e6b650782bf8bdf_mafia_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2532
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2808
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2976
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2300
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2748
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2712
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2824
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:1272
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1480
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:3032
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:1500
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2040
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1976
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:1248

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

Loading Replay Monitor...

Downloads

memory/2316-1-0x0000000001490000-0x0000000001590000-memory.dmp

Filesize
1024KB

Download
memory/2316-2-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/2316-4-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/2316-3-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/2316-11-0x0000000001490000-0x0000000001590000-memory.dmp

Filesize
1024KB

Download
memory/2316-12-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/2316-14-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download