zgrat | bc2612aeae58ca2f8eaee44f3da03e34fac8a6c95f5afc083d188587c684f349

General

Target

27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe
Size

2.9MB
MD5

27ac58d73248ebb72b350a1d0642e866
SHA1

88697d4f4d6e00a8ff29083a1a97c8d150f8939b
SHA256

bc2612aeae58ca2f8eaee44f3da03e34fac8a6c95f5afc083d188587c684f349
SHA512

db8c968b3415d02868bc0fb01cb6104504a058c3f6dd1769a8e56bb1c47ed830e2b8d8e9873cd6fbfd15dfff4d46999f1562cb06c8427d9b007108ad1793f998
SSDEEP

49152:LsOFQleKVdNyJly8CcE/mPPgugoRpPNYYjzB6Ri2rC66G4ioVq7oBRff:3aZvyJlAcEmPXzYLCzhiK4oB9

Score

10^/10

Malware Config

Signatures

Detect ZGRat V1 4 IoCs

resource	yara_rule
behavioral2/memory/4992-12-0x0000000000690000-0x0000000000ECA000-memory.dmp	family_zgrat_v1
behavioral2/memory/4992-31-0x0000000000690000-0x0000000000ECA000-memory.dmp	family_zgrat_v1
behavioral2/memory/2320-34-0x00000000007B0000-0x0000000000FEA000-memory.dmp	family_zgrat_v1
behavioral2/memory/2320-37-0x00000000007B0000-0x0000000000FEA000-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 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	svchost32.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svchost32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	svchost32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2320	svchost32.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	svchost32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4992	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe
2320	svchost32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3376	2320	WerFault.exe	93

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4992	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe
2320	svchost32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4992	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe
Token: SeDebugPrivilege	2320	svchost32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4992 wrote to memory of 2320	4992	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe	93
PID 4992 wrote to memory of 2320	4992	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe	93
PID 4992 wrote to memory of 2320	4992	27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe	93

C:\Users\Admin\AppData\Local\Temp\27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\27ac58d73248ebb72b350a1d0642e866_JaffaCakes118.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Documents and Settings\svchost32.exe
  "C:\Documents and Settings\svchost32.exe"
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2320
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2320 -s 1548
    3⤵
    - Program crash
    PID:3376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2320 -ip 2320
1⤵
PID:4136

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\svchost32.exe

Filesize
2.9MB

MD5
27ac58d73248ebb72b350a1d0642e866

SHA1
88697d4f4d6e00a8ff29083a1a97c8d150f8939b

SHA256
bc2612aeae58ca2f8eaee44f3da03e34fac8a6c95f5afc083d188587c684f349

SHA512
db8c968b3415d02868bc0fb01cb6104504a058c3f6dd1769a8e56bb1c47ed830e2b8d8e9873cd6fbfd15dfff4d46999f1562cb06c8427d9b007108ad1793f998

Download Submit
memory/2320-37-0x00000000007B0000-0x0000000000FEA000-memory.dmp

Filesize
8.2MB

Download
memory/2320-36-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/2320-34-0x00000000007B0000-0x0000000000FEA000-memory.dmp

Filesize
8.2MB

Download
memory/2320-28-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/2320-26-0x00000000007B0000-0x0000000000FEA000-memory.dmp

Filesize
8.2MB

Download
memory/4992-1-0x0000000075860000-0x0000000075861000-memory.dmp

Filesize
4KB

Download
memory/4992-30-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/4992-12-0x0000000000690000-0x0000000000ECA000-memory.dmp

Filesize
8.2MB

Download
memory/4992-13-0x0000000005670000-0x0000000005702000-memory.dmp

Filesize
584KB

Download
memory/4992-4-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/4992-14-0x0000000005CC0000-0x0000000006264000-memory.dmp

Filesize
5.6MB

Download
memory/4992-0-0x0000000000690000-0x0000000000ECA000-memory.dmp

Filesize
8.2MB

Download
memory/4992-15-0x0000000000690000-0x0000000000ECA000-memory.dmp

Filesize
8.2MB

Download
memory/4992-3-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/4992-2-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/4992-31-0x0000000000690000-0x0000000000ECA000-memory.dmp

Filesize
8.2MB

Download
memory/4992-5-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/4992-6-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/4992-27-0x0000000075860000-0x0000000075861000-memory.dmp

Filesize
4KB

Download
memory/4992-9-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/4992-7-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download
memory/4992-8-0x0000000075840000-0x0000000075930000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads