66e6cf410bb79cd5dce9d9c345be2773a1c5f3f92fed65677f854e61f5918ca9

General

Target

3e330e58b7d79a91570e4b12bb00a03d.exe
Size

3.2MB
MD5

3e330e58b7d79a91570e4b12bb00a03d
SHA1

671c52189036c478a15adc99dc9c080f8e08a9f5
SHA256

66e6cf410bb79cd5dce9d9c345be2773a1c5f3f92fed65677f854e61f5918ca9
SHA512

61868814d8cf78010f1babd2e739ece531db8826e9b001c3f8c3a0345d3b34cffa45a64a5464122015f17aabfcab2c13431c1da526edc8bc103fc8e93ecb9108
SSDEEP

49152:NcbZrshAtKEMU9WzmWfgXRRQg6F6BKbKKbe3sQ5pXvfSRWY7yRwExWInmEJVeT9f:SbGacEMGWzm6EDHZX3HhmE6T9

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	3e330e58b7d79a91570e4b12bb00a03d.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2316-1-0x0000000013140000-0x000000001378B000-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)	\??\P:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\U:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\V:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\G:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\I:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\L:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\O:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\N:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\Q:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\S:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\Z:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\E:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\H:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\W:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\Y:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\T:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\X:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\J:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\K:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\M:	3e330e58b7d79a91570e4b12bb00a03d.exe
File opened (read-only)	\??\R:	3e330e58b7d79a91570e4b12bb00a03d.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	3e330e58b7d79a91570e4b12bb00a03d.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
1736	2316	WerFault.exe	16

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2316	3e330e58b7d79a91570e4b12bb00a03d.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2044	2316	3e330e58b7d79a91570e4b12bb00a03d.exe	22
PID 2316 wrote to memory of 2044	2316	3e330e58b7d79a91570e4b12bb00a03d.exe	22
PID 2316 wrote to memory of 2044	2316	3e330e58b7d79a91570e4b12bb00a03d.exe	22
PID 2316 wrote to memory of 2044	2316	3e330e58b7d79a91570e4b12bb00a03d.exe	22
PID 2316 wrote to memory of 1736	2316	3e330e58b7d79a91570e4b12bb00a03d.exe	21
PID 2316 wrote to memory of 1736	2316	3e330e58b7d79a91570e4b12bb00a03d.exe	21
PID 2316 wrote to memory of 1736	2316	3e330e58b7d79a91570e4b12bb00a03d.exe	21
PID 2316 wrote to memory of 1736	2316	3e330e58b7d79a91570e4b12bb00a03d.exe	21

C:\Users\Admin\AppData\Local\Temp\3e330e58b7d79a91570e4b12bb00a03d.exe
"C:\Users\Admin\AppData\Local\Temp\3e330e58b7d79a91570e4b12bb00a03d.exe"
1⤵
- Enumerates VirtualBox registry keys
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2316 -s 228
  2⤵
  - Program crash
  PID:1736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\del.bat"
  2⤵
  PID:2044

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

C:\Users\Admin\AppData\Local\Temp\del.bat

Filesize
183B

MD5
5a2c159b07268677044227b0710481ae

SHA1
1f2af18f23ff653a317d36ba06c989e46d9a196f

SHA256
34f6043d4869eb678f97837414b718404d581820032cd1e1c38cada4032ec412

SHA512
805316a990641884e1be5c3f7497fe7568f9fe1184194a2653878d40c9cfe470a15b479e87d6f644c28dfb1c128659f3fd21621401eff44fbed911d25a6052c9

Download Submit
memory/2316-0-0x0000000000230000-0x0000000000234000-memory.dmp

Filesize
16KB

Download
memory/2316-2-0x0000000000230000-0x0000000000234000-memory.dmp

Filesize
16KB

Download
memory/2316-1-0x0000000013140000-0x000000001378B000-memory.dmp

Filesize
6.3MB

Download
memory/2316-5-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2316-4-0x0000000013140000-0x000000001378B000-memory.dmp

Filesize
6.3MB

Download
memory/2316-7-0x0000000013140000-0x000000001378B000-memory.dmp

Filesize
6.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads