gandcrab | 7f12aea157fd519b1d9b6e8e03a22f4abf3b0413bb6e406a3acc1b36aba1b266

Analysis

max time kernel
149s
max time network
156s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
22-08-2023 15:09

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General

Target

67718d241e2683cbb75d8026920385b5_mafia_JC.exe
Size

312KB
MD5

67718d241e2683cbb75d8026920385b5
SHA1

26875ed4609f232196264dd06b34afa6aa24ba2f
SHA256

7f12aea157fd519b1d9b6e8e03a22f4abf3b0413bb6e406a3acc1b36aba1b266
SHA512

669ea9b0813c5f24505769d31bb5fef4ac44cc184cfcc062dd67b1210a8bcb327e5c4b7c5b2d20294a55fe175f2c96f95e9736fc852cfc6db8e3be1a10e9de8a
SSDEEP

6144:uuj33iwZkzXwPPTLjQ1JStkJVPzhd0FTXE6eAiUa:uuaXwPmEkXcF20a

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

resource	yara_rule
behavioral1/memory/940-56-0x0000000000400000-0x000000000044D000-memory.dmp	family_gandcrab
behavioral1/memory/940-58-0x0000000000240000-0x0000000000257000-memory.dmp	family_gandcrab
behavioral1/memory/940-66-0x0000000000400000-0x000000000044D000-memory.dmp	family_gandcrab
behavioral1/memory/940-68-0x0000000000240000-0x0000000000257000-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\iabbzymiuif = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\vyzkcs.exe\""	67718d241e2683cbb75d8026920385b5_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)	\??\L:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\M:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\N:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\O:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\R:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\V:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\Y:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\B:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\E:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\H:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\I:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\S:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\U:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\W:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\G:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\P:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\Q:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\X:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\A:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\J:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\K:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\T:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
File opened (read-only)	\??\Z:	67718d241e2683cbb75d8026920385b5_mafia_JC.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe
940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe

Suspicious use of WriteProcessMemory 52 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 1364	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	30
PID 940 wrote to memory of 1364	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	30
PID 940 wrote to memory of 1364	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	30
PID 940 wrote to memory of 1364	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	30
PID 940 wrote to memory of 2404	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	32
PID 940 wrote to memory of 2404	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	32
PID 940 wrote to memory of 2404	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	32
PID 940 wrote to memory of 2404	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	32
PID 940 wrote to memory of 2320	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	34
PID 940 wrote to memory of 2320	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	34
PID 940 wrote to memory of 2320	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	34
PID 940 wrote to memory of 2320	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	34
PID 940 wrote to memory of 2816	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	36
PID 940 wrote to memory of 2816	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	36
PID 940 wrote to memory of 2816	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	36
PID 940 wrote to memory of 2816	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	36
PID 940 wrote to memory of 2908	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	38
PID 940 wrote to memory of 2908	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	38
PID 940 wrote to memory of 2908	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	38
PID 940 wrote to memory of 2908	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	38
PID 940 wrote to memory of 2148	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	40
PID 940 wrote to memory of 2148	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	40
PID 940 wrote to memory of 2148	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	40
PID 940 wrote to memory of 2148	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	40
PID 940 wrote to memory of 2940	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	42
PID 940 wrote to memory of 2940	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	42
PID 940 wrote to memory of 2940	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	42
PID 940 wrote to memory of 2940	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	42
PID 940 wrote to memory of 2968	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	44
PID 940 wrote to memory of 2968	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	44
PID 940 wrote to memory of 2968	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	44
PID 940 wrote to memory of 2968	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	44
PID 940 wrote to memory of 2832	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	46
PID 940 wrote to memory of 2832	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	46
PID 940 wrote to memory of 2832	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	46
PID 940 wrote to memory of 2832	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	46
PID 940 wrote to memory of 2724	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	48
PID 940 wrote to memory of 2724	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	48
PID 940 wrote to memory of 2724	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	48
PID 940 wrote to memory of 2724	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	48
PID 940 wrote to memory of 2740	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	50
PID 940 wrote to memory of 2740	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	50
PID 940 wrote to memory of 2740	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	50
PID 940 wrote to memory of 2740	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	50
PID 940 wrote to memory of 2084	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	52
PID 940 wrote to memory of 2084	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	52
PID 940 wrote to memory of 2084	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	52
PID 940 wrote to memory of 2084	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	52
PID 940 wrote to memory of 1228	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	54
PID 940 wrote to memory of 1228	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	54
PID 940 wrote to memory of 1228	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	54
PID 940 wrote to memory of 1228	940	67718d241e2683cbb75d8026920385b5_mafia_JC.exe	54

C:\Users\Admin\AppData\Local\Temp\67718d241e2683cbb75d8026920385b5_mafia_JC.exe
"C:\Users\Admin\AppData\Local\Temp\67718d241e2683cbb75d8026920385b5_mafia_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:940
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1364
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2404
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2320
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2816
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2908
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2148
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2940
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2968
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:2832
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns2.wowservers.ru
  2⤵
  PID:2724
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns2.wowservers.ru
  2⤵
  PID:2740
- C:\Windows\SysWOW64\nslookup.exe
  nslookup ransomware.bit ns1.wowservers.ru
  2⤵
  PID:2084
- C:\Windows\SysWOW64\nslookup.exe
  nslookup carder.bit ns1.wowservers.ru
  2⤵
  PID:1228

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/940-54-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/940-55-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/940-56-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/940-58-0x0000000000240000-0x0000000000257000-memory.dmp

Filesize
92KB

Download
memory/940-65-0x0000000000520000-0x0000000000620000-memory.dmp

Filesize
1024KB

Download
memory/940-66-0x0000000000400000-0x000000000044D000-memory.dmp

Filesize
308KB

Download
memory/940-68-0x0000000000240000-0x0000000000257000-memory.dmp

Filesize
92KB

Download