gandcrab | 13a3e11b6a44ecffa01ac4c9418f5463f081a76417b8defd721dc42b8ef536db

General

Target

2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
Size

326KB
MD5

4f12dc56f9ed27ce239de505e5bdc20d
SHA1

94e05960a5365eab595a120ad6025c5116177625
SHA256

13a3e11b6a44ecffa01ac4c9418f5463f081a76417b8defd721dc42b8ef536db
SHA512

88a51c0578ab2515db516a9d346fe4edabc789e321633758523a266e1f0d519f41f8702661d4fb1d8a3b3b8fb984d12f3f0243ef764b60ef6aac064038d7592e
SSDEEP

3072:B+V2GtTbCnDlMTM87yRBNWwxnImfoP/KOBejjY6IaCDtm0zT5363kQ8JuF:BBEUuTXkLHgPitjYVmq+h

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1600-5-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab
behavioral1/memory/1600-4-0x0000000000400000-0x00000000012D6000-memory.dmp	family_gandcrab
behavioral1/memory/1600-7-0x0000000000400000-0x00000000012D6000-memory.dmp	family_gandcrab
behavioral1/memory/1600-16-0x0000000000220000-0x0000000000237000-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
behavioral1/memory/1600-5-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1600-4-0x0000000000400000-0x00000000012D6000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1600-7-0x0000000000400000-0x00000000012D6000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1600-16-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1600-5-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1600-16-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1600-5-0x0000000000220000-0x0000000000237000-memory.dmp	Gandcrab
behavioral1/memory/1600-4-0x0000000000400000-0x00000000012D6000-memory.dmp	Gandcrab
behavioral1/memory/1600-7-0x0000000000400000-0x00000000012D6000-memory.dmp	Gandcrab
behavioral1/memory/1600-16-0x0000000000220000-0x0000000000237000-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:

2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\orkjbucbstw = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\zmcszi.exe\""	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_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:

2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe

description	ioc	process
File opened (read-only)	\??\N:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\R:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_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:

2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe

pid process

1600 2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
1600 2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe

pid	process
1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe

description	pid	process	target process
PID 1600 wrote to memory of 2680	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2680	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2680	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2680	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2616	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2616	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2616	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2616	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 1136	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 1136	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 1136	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 1136	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2152	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2152	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2152	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2152	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2292	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2292	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2292	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2292	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2244	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2244	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2244	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe
PID 1600 wrote to memory of 2244	1600	2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-26_4f12dc56f9ed27ce239de505e5bdc20d_karagany_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:1600

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2680

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2616

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:1136

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:2152

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2292

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2244

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

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Downloads

memory/1600-1-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/1600-2-0x00000000013B0000-0x00000000014B0000-memory.dmp

Filesize
1024KB

Download
memory/1600-3-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/1600-5-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/1600-4-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/1600-7-0x0000000000400000-0x00000000012D6000-memory.dmp

Filesize
14.8MB

Download
memory/1600-15-0x00000000013B0000-0x00000000014B0000-memory.dmp

Filesize
1024KB

Download
memory/1600-16-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads