a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41

Analysis

max time kernel
16s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02/12/2022, 23:14

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General

Target

a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe
Size

781KB
MD5

d48727b80839d610f8c36326c5229299
SHA1

bfd1b0e9ca7a6c29f3442a87f2c34a42a427a8fa
SHA256

a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41
SHA512

99c77479dfe848df6b1e90b5c01a8e1bacf6d830910cfef0d2cf1f27c7d58cbd39c39211d0750652e6a8d79c87bd2d6cf2d7b8e99b05b2d25aa23f80284ddd92
SSDEEP

12288:V+tlzrOrzP9b3Mx0mWdBuVz/1jY1UHlPZOdDoXaIG8XNIUDLVZK37Au:ktlzrOrzV7y0mtz/1GDoaIG8XGsV/u

Score

7^/10

evasion themida

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 1 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	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Wine	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/1980-54-0x0000000000400000-0x00000000004C6000-memory.dmp	themida
behavioral1/memory/1980-60-0x0000000000400000-0x00000000004C6000-memory.dmp	themida

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1980	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1980	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe
1980	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe
1980	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1980 wrote to memory of 1212	1980	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe	14
PID 1980 wrote to memory of 1212	1980	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe	14
PID 1980 wrote to memory of 1212	1980	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe	14
PID 1980 wrote to memory of 1212	1980	a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe	14

C:\Users\Admin\AppData\Local\Temp\a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe
"C:\Users\Admin\AppData\Local\Temp\a9a5fd55da53435b30d4023e5225de2534ab3246a817f13d9432bb19fd963f41.exe"
1⤵
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1980

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1212-56-0x000000007FFF0000-0x000000007FFF7000-memory.dmp

Filesize
28KB

Download
memory/1980-54-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download
memory/1980-55-0x0000000075521000-0x0000000075523000-memory.dmp

Filesize
8KB

Download
memory/1980-59-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/1980-60-0x0000000000400000-0x00000000004C6000-memory.dmp

Filesize
792KB

Download