gandcrab | f82c50346ddc75be579e51800a47b082959c00f8e690344f9b27bb1fae1bb4e9

General

Target

2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
Size

351KB
MD5

4a78eedcc75dd72b4db2fa6b6b250def
SHA1

56bd4979f8c26be4ed6446e1bfcde5feec267a54
SHA256

f82c50346ddc75be579e51800a47b082959c00f8e690344f9b27bb1fae1bb4e9
SHA512

86a63d46054c52f34a39500f2f3f8dad7628bd08b6584677eacba9393fbd221577c8586f5024638381ce7e6cc0c9b7946ccc691bd2ffc7260d3e368e956a9284
SSDEEP

3072:QpNMs+Kr1wbWGjl0xjsNNeVKBNVBxKT46xl+wndfIQQOaC3QBn7/hsb2BhGZ1/Nb:QpNMsLWEjsXjBATRpuuwnGD/Nj6a

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/732-3-0x0000000000400000-0x00000000012D6000-memory.dmp	family_gandcrab
behavioral2/memory/732-4-0x00000000014C0000-0x00000000014D7000-memory.dmp	family_gandcrab
behavioral2/memory/732-15-0x00000000014C0000-0x00000000014D7000-memory.dmp	family_gandcrab
behavioral2/memory/732-17-0x00000000014C0000-0x00000000014D7000-memory.dmp	family_gandcrab

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

Detects Reflective DLL injection artifacts 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/732-3-0x0000000000400000-0x00000000012D6000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral2/memory/732-4-0x00000000014C0000-0x00000000014D7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral2/memory/732-15-0x00000000014C0000-0x00000000014D7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral2/memory/732-17-0x00000000014C0000-0x00000000014D7000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/732-4-0x00000000014C0000-0x00000000014D7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/732-15-0x00000000014C0000-0x00000000014D7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral2/memory/732-17-0x00000000014C0000-0x00000000014D7000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/732-3-0x0000000000400000-0x00000000012D6000-memory.dmp	Gandcrab
behavioral2/memory/732-4-0x00000000014C0000-0x00000000014D7000-memory.dmp	Gandcrab
behavioral2/memory/732-15-0x00000000014C0000-0x00000000014D7000-memory.dmp	Gandcrab
behavioral2/memory/732-17-0x00000000014C0000-0x00000000014D7000-memory.dmp	Gandcrab

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\pkaffpwegtm = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\xicvgc.exe\""	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.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

Processes:

2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe

description	ioc	process
File opened (read-only)	\??\O:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\W:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\B:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\I:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\J:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\K:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\L:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\T:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\Z:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\A:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\G:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\Q:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\R:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\V:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\E:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\P:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\N:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\S:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\U:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\X:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\Y:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\H:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
File opened (read-only)	\??\M:	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1584 732 WerFault.exe 2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe

pid	pid_target	process	target process
1584	732	WerFault.exe	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.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

Processes:

2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe

pid	process
732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe

description	pid	process	target process
PID 732 wrote to memory of 2980	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 2980	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 2980	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 2464	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 2464	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 2464	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 4504	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 4504	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 4504	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 4112	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 4112	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 4112	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 3900	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 3900	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 3900	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 4984	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 4984	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe
PID 732 wrote to memory of 4984	732	2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-01_4a78eedcc75dd72b4db2fa6b6b250def_mafia.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:732

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2980

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2464

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:4504

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:4112

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:3900

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 732 -s 1440
2⤵
- Program crash
PID:1584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 732 -ip 732
1⤵
PID:1940

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4112 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
1⤵
PID:2228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/732-1-0x00000000014F0000-0x00000000015F0000-memory.dmp

Filesize
1024KB

Download
memory/732-2-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/732-3-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/732-4-0x00000000014C0000-0x00000000014D7000-memory.dmp

Filesize
92KB

Download
memory/732-13-0x00000000014F0000-0x00000000015F0000-memory.dmp

Filesize
1024KB

Download
memory/732-15-0x00000000014C0000-0x00000000014D7000-memory.dmp

Filesize
92KB

Download
memory/732-17-0x00000000014C0000-0x00000000014D7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads