915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e

Analysis

max time kernel
90s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 18:20

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General

Target

915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe
Size

52KB
MD5

d5c51c074723a1a26101973e6a01254d
SHA1

52cb12a0ca37297478f14d11072a922ec4a41195
SHA256

915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e
SHA512

748b890f02805bbd9cf8289245ea7331356ef157b9910781c69116a4935cd7aecf479d349dff779706e4a4ade799f6914e582a025571e0cc140d6f31f6f10fb8
SSDEEP

1536:gExDPQ9l3ky88x8vTJJ16mQhfWrTflItYtb:VxE9BkX8evTJJmsTflItYtb

Score

10^/10

evasion

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe

Executes dropped EXE 1 IoCs

pid	Process
2320	main.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\taoY.ico	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Optimize\main.exe	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe
File created	C:\Program Files (x86)\Messenger\Messenger.kvh	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe
File created	C:\Program Files (x86)\Optimize\main.exe	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.kvh	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.kvh\ = "JSEFile"	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1316 wrote to memory of 2320	1316	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe	82
PID 1316 wrote to memory of 2320	1316	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe	82
PID 1316 wrote to memory of 2320	1316	915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe	82

C:\Users\Admin\AppData\Local\Temp\915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe
"C:\Users\Admin\AppData\Local\Temp\915414113bb65a00faebb46f147e7a1ba14a0a9c8b11f139bdc9f41dccb3a43e.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1316
- C:\Program Files (x86)\Optimize\main.exe
  "C:\Program Files (x86)\Optimize\main.exe" "C:\Program Files (x86)\Messenger\messenger.kvh"
  2⤵
  - Executes dropped EXE
  PID:2320

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Messenger\messenger.kvh

Filesize
10KB

MD5
147add3dfd6e3e636e7756c674dead4b

SHA1
aa50f047f5d41086a9fad12ba1149a4e7d4fd6ad

SHA256
7ca5d56eb7433065bef86e42cc32fc9c222708ca9dd448da5b6a8c09f06e183f

SHA512
20eded712e509e439553ec752c62f5d157e6402fe2e2a09377cb59dea2c68aabdc6567a95790cd235d47799e9397f0abb6c028e9ede5dfae45cc945843baa650

Download Submit
C:\Program Files (x86)\Optimize\main.exe

Filesize
144KB

MD5
ff00e0480075b095948000bdc66e81f0

SHA1
c2326cc50a739d3bc512bb65a24d42f1cde745c9

SHA256
8c767077bb410f95b1db237b31f4f6e1512c78c1f0120de3f215b501f6d1c7ea

SHA512
3a38e62dcb925411bc037335e46dfdd895c12a52ac43c47ef38db42d41d8358dfc2b1081a361367911d60ec5a3350ca734cf70ad57b21d39b23cfdec35b0aced

Download Submit
C:\Program Files (x86)\Optimize\main.exe

Filesize
144KB

MD5
ff00e0480075b095948000bdc66e81f0

SHA1
c2326cc50a739d3bc512bb65a24d42f1cde745c9

SHA256
8c767077bb410f95b1db237b31f4f6e1512c78c1f0120de3f215b501f6d1c7ea

SHA512
3a38e62dcb925411bc037335e46dfdd895c12a52ac43c47ef38db42d41d8358dfc2b1081a361367911d60ec5a3350ca734cf70ad57b21d39b23cfdec35b0aced

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads