gandcrab | f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d

General

Target

f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
Size

248KB
MD5

3e6bac51203e538ab6e571b956ef5c39
SHA1

60324810e0e4b1513135fbfc0becd00af28d09e4
SHA256

f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d
SHA512

34ecf4fa6ea814ae03f7153330dcac0b36cbcc0c6b7fdec6b07f7951867bec109ba4491c2caa566cb3bc0be531667b575f4482e184b424348fb06be0f68ba181

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/736-115-0x0000000000C70000-0x0000000000C87000-memory.dmp	family_gandcrab

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\fniydkmxdao = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\pejgqs.exe\""	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

Enumerates connected drives 3 TTPs 24 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:

f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

description	ioc	process
File opened (read-only)	\??\Y:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\Z:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\A:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\B:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\G:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\M:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\T:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\U:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\W:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\F:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\J:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\P:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\Q:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\R:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\V:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\I:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\K:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\N:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\O:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\X:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\E:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\H:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\L:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
File opened (read-only)	\??\S:	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

Drops file in Windows directory 1 IoCs

Processes:

f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

description ioc process

File opened for modification C:\Windows\win.ini f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

description	ioc	process
File opened for modification	C:\Windows\win.ini	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.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:

f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

pid	process
736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe

description	pid	process	target process
PID 736 wrote to memory of 196	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 196	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 196	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 3276	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 3276	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 3276	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 1184	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 1184	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 1184	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 3536	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 3536	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 3536	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 2100	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 2100	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 2100	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 500	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 500	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe
PID 736 wrote to memory of 500	736	f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe
"C:\Users\Admin\AppData\Local\Temp\f9d38e6a1b3dbd3da9393ba357454cf2890a01ce8f5e92b0f3ee57480f3e3b9d.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Windows directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:736

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:196

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:3276

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:1184

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:3536

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2100

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:500

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/196-116-0x0000000000000000-mapping.dmp

Download
memory/500-121-0x0000000000000000-mapping.dmp

Download
memory/736-114-0x0000000000400000-0x0000000000B4D000-memory.dmp

Filesize
7.3MB

Download
memory/736-115-0x0000000000C70000-0x0000000000C87000-memory.dmp

Filesize
92KB

Download
memory/1184-118-0x0000000000000000-mapping.dmp

Download
memory/2100-120-0x0000000000000000-mapping.dmp

Download
memory/3276-117-0x0000000000000000-mapping.dmp

Download
memory/3536-119-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads