7ff4cc81b6d0649d1bdb36aa34ecceebbe0f802976a30d611ff850555cbef3bf

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
14/03/2024, 11:22

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General

Target

c87e1a97ed301f1c46d7a6c9297ff46d.exe
Size

691KB
MD5

c87e1a97ed301f1c46d7a6c9297ff46d
SHA1

d126557c233ecc0dbfdf40e795b84f86f7f7c9e3
SHA256

7ff4cc81b6d0649d1bdb36aa34ecceebbe0f802976a30d611ff850555cbef3bf
SHA512

a5f1c9cdec032508477a2161557a67232427417b820e45713c8f16fa5b0ccb56614ee8e5202449520ebe4b32b59fdbffa74c856e94af5a33085067a63ca63f52
SSDEEP

12288:3QMxDCOsCvqi11lYQj4Pykuulv1yPnHYoZrb5xEfD0urv49nM/E6sO5loIxJ:35HTvqiTYQjhuryPHYoZPHoD0SZwqJ

Score

7^/10

evasion themida

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2552	decrypted.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-1-5-21-1298544033-3225604241-2703760938-1000\Software\Wine	c87e1a97ed301f1c46d7a6c9297ff46d.exe

Loads dropped DLL 5 IoCs

pid	Process
2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe
2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe
2552	decrypted.exe
2552	decrypted.exe
2552	decrypted.exe

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2204-0-0x0000000000400000-0x000000000056C000-memory.dmp	themida
behavioral1/memory/2204-15-0x0000000000400000-0x000000000056C000-memory.dmp	themida

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2552	2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe	28
PID 2204 wrote to memory of 2552	2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe	28
PID 2204 wrote to memory of 2552	2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe	28
PID 2204 wrote to memory of 2552	2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe	28
PID 2204 wrote to memory of 2552	2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe	28
PID 2204 wrote to memory of 2552	2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe	28
PID 2204 wrote to memory of 2552	2204	c87e1a97ed301f1c46d7a6c9297ff46d.exe	28

C:\Users\Admin\AppData\Local\Temp\c87e1a97ed301f1c46d7a6c9297ff46d.exe
"C:\Users\Admin\AppData\Local\Temp\c87e1a97ed301f1c46d7a6c9297ff46d.exe"
1⤵
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2204
- C:\Users\Admin\AppData\Local\Temp\decrypted.exe
  "C:\Users\Admin\AppData\Local\Temp\decrypted.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

\Users\Admin\AppData\Local\Temp\decrypted.exe

Filesize
39KB

MD5
232e2a111ba62b666f877497ad368965

SHA1
a6362059febbc8a8c0b1765f2ccc8fd242f7d37d

SHA256
516c1d5970a6d8ffd241d2daed5071e554391a87aae57377e50e64709e4f64a5

SHA512
0f5497b8e9f792600e5e8087918660c00505fa38d741860a0f7b7510ba088e7f25815612ce3af6135214c339c053917a9c566a852ffd8f51cc63bee7aca31f43

Download Submit
memory/2204-0-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/2204-1-0x00000000009D0000-0x0000000000B3C000-memory.dmp

Filesize
1.4MB

Download
memory/2204-4-0x00000000048C0000-0x00000000048C2000-memory.dmp

Filesize
8KB

Download
memory/2204-6-0x0000000004480000-0x0000000004482000-memory.dmp

Filesize
8KB

Download
memory/2204-21-0x0000000004D70000-0x0000000004D7B000-memory.dmp

Filesize
44KB

Download
memory/2204-15-0x0000000000400000-0x000000000056C000-memory.dmp

Filesize
1.4MB

Download
memory/2552-22-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download
memory/2552-20-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download