zgrat | 350442635ff576593330b847b158ace7ee273318ba4a6589b73f8003f992cb93

General

Target

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe
Size

2.2MB
MD5

3cf040c41c92703f439c9f7e9e3928fc
SHA1

2cc2acec057898e67a512107217cdda2fc4d5fa1
SHA256

350442635ff576593330b847b158ace7ee273318ba4a6589b73f8003f992cb93
SHA512

01a7b52c234254fd16463ee2e91a74f8cc32acaca6db6fd5fbaa557c0ca6598d5d16ea99ad08b63c6acf0ca82ee960273e5f0349a0a4de6a802ea235c479d90a
SSDEEP

49152:VjcGr41xHm/X4YsCYCiLFzRf0K8TzTdyPbabsz2mpYJ:9EdMX4Y/kFzpD8TzMWbszIJ

Score

10^/10

zgrat collection discovery evasion rat spyware stealer

Malware Config

Signatures

Detect ZGRat V1 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2428-1-0x00000000002E0000-0x0000000000856000-memory.dmp	family_zgrat_v1
behavioral2/memory/2428-2-0x00000000002E0000-0x0000000000856000-memory.dmp	family_zgrat_v1
behavioral2/memory/2428-64-0x00000000002E0000-0x0000000000856000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Wine	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

19 api.ipify.org
20 api.ipify.org
22 ip-api.com
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

pid process

2428 3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3588 2428 WerFault.exe 3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

flow	ioc
19	api.ipify.org
20	api.ipify.org
22	ip-api.com

pid	pid_target	process	target process
3588	2428	WerFault.exe	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

pid	process
2428	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe
2428	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe
2428	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe
2428	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

description pid process

Token: SeDebugPrivilege 2428 3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	2428	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

outlook_office_path 1 IoCs

Processes:

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

outlook_win_path 1 IoCs

Processes:

3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3cf040c41c92703f439c9f7e9e3928fc_JaffaCakes118.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Accesses Microsoft Outlook profiles
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 2756
2⤵
- Program crash
PID:3588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2428 -ip 2428
1⤵
PID:4520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

4

T1012

System Information Discovery

1

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\JVyBCD339CC23\23BCD339CCJVy\Files\ResizePop.txt
Filesize
1.2MB

MD5
cbe580f171271e27f3546129fe7a333b

SHA1
df04cdda2da9c85cccf7bbd21217a6c62cbce049

SHA256
77fcc967bb2274e73a924f2912144e944d55d57402e541b8e6d2ae7ec897132d

SHA512
c50c9a9ab2b9987bbc0060cd0f9b764a1f6a0974f3654260059995120caae5a8b29e5f7322113daa64dc4de1b7eb286785ac1fba7bc50742bb7df203049b2312

Download Submit
memory/2428-0-0x00000000002E0000-0x0000000000856000-memory.dmp

Filesize
5.5MB

Download
memory/2428-1-0x00000000002E0000-0x0000000000856000-memory.dmp

Filesize
5.5MB

Download
memory/2428-2-0x00000000002E0000-0x0000000000856000-memory.dmp

Filesize
5.5MB

Download
memory/2428-3-0x00000000072F0000-0x0000000007356000-memory.dmp

Filesize
408KB

Download
memory/2428-9-0x0000000007CE0000-0x0000000007D7C000-memory.dmp

Filesize
624KB

Download
memory/2428-29-0x0000000008800000-0x0000000008DA4000-memory.dmp

Filesize
5.6MB

Download
memory/2428-28-0x00000000081B0000-0x0000000008242000-memory.dmp

Filesize
584KB

Download
memory/2428-61-0x0000000008750000-0x0000000008772000-memory.dmp

Filesize
136KB

Download
memory/2428-62-0x0000000008DB0000-0x0000000009104000-memory.dmp

Filesize
3.3MB

Download
memory/2428-64-0x00000000002E0000-0x0000000000856000-memory.dmp

Filesize
5.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads