gandcrab | 46b968b253009687dca7e8f8ebb17278d81b9a68827f56866607661e2800d0bc

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
20-08-2023 10:59

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General

Target

5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
Size

308KB
MD5

5250e20520e90c3310cf95dc7dd07d0d
SHA1

d197f78dd686f7bdd1f8852d7e816e92df6c8ef7
SHA256

46b968b253009687dca7e8f8ebb17278d81b9a68827f56866607661e2800d0bc
SHA512

6693608610eb92e5061312e8be8845104a7e284fb21faf8a34deef5979d641b0a467533866992ceb01fce58eafe540efc3d07f1ac4ff9318a7b9e955333a3da5
SSDEEP

6144:fzL7ShWDLVzVNam6GxI29dqG3KdYAYqTuPZp:1DHNam62ZdKmZmuPH

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/2596-55-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2596-56-0x00000000002E0000-0x00000000002F7000-memory.dmp	family_gandcrab
behavioral1/memory/2596-63-0x0000000000400000-0x0000000001400000-memory.dmp	family_gandcrab
behavioral1/memory/2596-65-0x00000000002E0000-0x00000000002F7000-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\eryqbdoebcx = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\szmtsi.exe\""	5250e20520e90c3310cf95dc7dd07d0d_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)	\??\A:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\B:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\E:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\H:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\P:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\Q:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\U:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\V:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\W:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\X:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\J:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\K:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\I:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\L:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\N:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\R:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\Z:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\G:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\M:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\O:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\S:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\T:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
File opened (read-only)	\??\Y:	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 764	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	28
PID 2596 wrote to memory of 764	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	28
PID 2596 wrote to memory of 764	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	28
PID 2596 wrote to memory of 764	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	28
PID 2596 wrote to memory of 2784	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	30
PID 2596 wrote to memory of 2784	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	30
PID 2596 wrote to memory of 2784	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	30
PID 2596 wrote to memory of 2784	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	30
PID 2596 wrote to memory of 2824	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	34
PID 2596 wrote to memory of 2824	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	34
PID 2596 wrote to memory of 2824	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	34
PID 2596 wrote to memory of 2824	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	34
PID 2596 wrote to memory of 2668	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	36
PID 2596 wrote to memory of 2668	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	36
PID 2596 wrote to memory of 2668	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	36
PID 2596 wrote to memory of 2668	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	36
PID 2596 wrote to memory of 2772	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	38
PID 2596 wrote to memory of 2772	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	38
PID 2596 wrote to memory of 2772	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	38
PID 2596 wrote to memory of 2772	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	38
PID 2596 wrote to memory of 2232	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	40
PID 2596 wrote to memory of 2232	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	40
PID 2596 wrote to memory of 2232	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	40
PID 2596 wrote to memory of 2232	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	40
PID 2596 wrote to memory of 268	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	42
PID 2596 wrote to memory of 268	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	42
PID 2596 wrote to memory of 268	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	42
PID 2596 wrote to memory of 268	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	42
PID 2596 wrote to memory of 840	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	44
PID 2596 wrote to memory of 840	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	44
PID 2596 wrote to memory of 840	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	44
PID 2596 wrote to memory of 840	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	44
PID 2596 wrote to memory of 564	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	46
PID 2596 wrote to memory of 564	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	46
PID 2596 wrote to memory of 564	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	46
PID 2596 wrote to memory of 564	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	46
PID 2596 wrote to memory of 3008	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	48
PID 2596 wrote to memory of 3008	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	48
PID 2596 wrote to memory of 3008	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	48
PID 2596 wrote to memory of 3008	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	48
PID 2596 wrote to memory of 2136	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	50
PID 2596 wrote to memory of 2136	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	50
PID 2596 wrote to memory of 2136	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	50
PID 2596 wrote to memory of 2136	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	50
PID 2596 wrote to memory of 2560	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	52
PID 2596 wrote to memory of 2560	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	52
PID 2596 wrote to memory of 2560	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	52
PID 2596 wrote to memory of 2560	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	52
PID 2596 wrote to memory of 2932	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	54
PID 2596 wrote to memory of 2932	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	54
PID 2596 wrote to memory of 2932	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	54
PID 2596 wrote to memory of 2932	2596	5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe	54

C:\Users\Admin\AppData\Local\Temp\5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe
"C:\Users\Admin\AppData\Local\Temp\5250e20520e90c3310cf95dc7dd07d0d_mafia_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2596
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:764
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2784
- 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:2668
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2772
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2232
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:268
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:840
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:564
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:3008
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2136
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2560
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2932

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/2596-54-0x000000000AA70000-0x000000000AB70000-memory.dmp

Filesize
1024KB

Download
memory/2596-55-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2596-56-0x00000000002E0000-0x00000000002F7000-memory.dmp

Filesize
92KB

Download
memory/2596-63-0x0000000000400000-0x0000000001400000-memory.dmp

Filesize
16.0MB

Download
memory/2596-64-0x000000000AA70000-0x000000000AB70000-memory.dmp

Filesize
1024KB

Download
memory/2596-65-0x00000000002E0000-0x00000000002F7000-memory.dmp

Filesize
92KB

Download