6f8978e9e9dfbabd48136fa088d5d4aec70365714a023f600469a8019dd99c2d

General

Target

fbc208d4a525f449c25074b21a1784b6.exe
Size

3.2MB
MD5

fbc208d4a525f449c25074b21a1784b6
SHA1

128dfd563f281370b3f34ac15de96875bf47c148
SHA256

6f8978e9e9dfbabd48136fa088d5d4aec70365714a023f600469a8019dd99c2d
SHA512

ebbc3ba7a4d5297f92ef3452259dde760dce6092dd2183af5a4c8f78a0e1f99334d61bcbb9957914aaa41daac8a0af775300fcb56073fb6eac9ee81cc0286738
SSDEEP

49152:taj0As03hf/c40nIFkR9hv5ZDLg45V9gVfW7dvdryINFQY/kxrJEIpEHmkeY:20URJ0nIFkD/ZZ32AvELukxN/EG

Score

9^/10

bootkit discovery evasion persistence upx

Malware Config

Signatures

Checks for common network interception software 1 TTPs
Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.
evasion

Software Discovery
T1518

Enumerates VirtualBox registry keys 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest	fbc208d4a525f449c25074b21a1784b6.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2444-0-0x0000000013140000-0x0000000013782000-memory.dmp	upx

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

Enumerates connected drives 3 TTPs 21 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

description	ioc	Process
File opened (read-only)	\??\M:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\Q:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\S:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\Z:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\E:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\G:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\I:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\L:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\H:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\N:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\O:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\K:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\P:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\T:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\W:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\X:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\Y:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\J:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\R:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\U:	fbc208d4a525f449c25074b21a1784b6.exe
File opened (read-only)	\??\V:	fbc208d4a525f449c25074b21a1784b6.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	fbc208d4a525f449c25074b21a1784b6.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
2708	2444	WerFault.exe	14

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2444	fbc208d4a525f449c25074b21a1784b6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeLoadDriverPrivilege	2444	fbc208d4a525f449c25074b21a1784b6.exe
Token: SeLoadDriverPrivilege	2444	fbc208d4a525f449c25074b21a1784b6.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 1628	2444	fbc208d4a525f449c25074b21a1784b6.exe	22
PID 2444 wrote to memory of 1628	2444	fbc208d4a525f449c25074b21a1784b6.exe	22
PID 2444 wrote to memory of 1628	2444	fbc208d4a525f449c25074b21a1784b6.exe	22
PID 2444 wrote to memory of 1628	2444	fbc208d4a525f449c25074b21a1784b6.exe	22
PID 2444 wrote to memory of 2708	2444	fbc208d4a525f449c25074b21a1784b6.exe	23
PID 2444 wrote to memory of 2708	2444	fbc208d4a525f449c25074b21a1784b6.exe	23
PID 2444 wrote to memory of 2708	2444	fbc208d4a525f449c25074b21a1784b6.exe	23
PID 2444 wrote to memory of 2708	2444	fbc208d4a525f449c25074b21a1784b6.exe	23

C:\Users\Admin\AppData\Local\Temp\fbc208d4a525f449c25074b21a1784b6.exe
"C:\Users\Admin\AppData\Local\Temp\fbc208d4a525f449c25074b21a1784b6.exe"
1⤵
- Enumerates VirtualBox registry keys
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\del.bat"
  2⤵
  PID:1628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 336
  2⤵
  - Program crash
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

Software Discovery

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2444-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2444-3-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2444-0-0x0000000013140000-0x0000000013782000-memory.dmp

Filesize
6.3MB

Download
memory/2444-5-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/2444-4-0x0000000013140000-0x0000000013782000-memory.dmp

Filesize
6.3MB

Download
memory/2444-8-0x0000000013140000-0x0000000013782000-memory.dmp

Filesize
6.3MB

Download
memory/2444-10-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads