fc658f3cbfef5d8e977eead8b8cad4c7238a6b47cafcdbfad26def954a1ff775

Analysis

max time kernel
95s
max time network
104s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
08/07/2024, 17:51

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General

Target

UtilZone__UZ65.exe
Size

73KB
MD5

44b42e41e2322c59bf765556aa0bec67
SHA1

1336f85f96abdcd03b137ff2c0cbe62f929ea708
SHA256

e5094e2495fa4b34bf1940e05457c0b68415a1f1c59ed10e0e31d77de25c3f71
SHA512

ecb18c909065242f0bc438c6b5c547ec096b1fa39c066c73c15aec9e7025f3b409a5d873f000f0ca85642b014ecc4de7b84f57096a836e0efc212edf24089967
SSDEEP

1536:HpgpHzb9dZVX9fHMvG0D3XJOhWBV9OdxkqIzjbanyjtg:JgXdZt9P6D3XJ4WBV25Kfg

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral22/memory/3696-17-0x0000000074E90000-0x0000000074E99000-memory.dmp	acprotect
behavioral22/files/0x000800000002351b-14.dat	acprotect

Deletes itself 1 IoCs

pid	Process
3916	explorer.exe

Loads dropped DLL 4 IoCs

pid	Process
3696	UtilZone__UZ65.exe
3696	UtilZone__UZ65.exe
3696	UtilZone__UZ65.exe
3696	UtilZone__UZ65.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral22/memory/3696-17-0x0000000074E90000-0x0000000074E99000-memory.dmp	upx
behavioral22/files/0x000800000002351b-14.dat	upx

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3696 set thread context of 3916	3696	UtilZone__UZ65.exe	86

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3696 wrote to memory of 3916	3696	UtilZone__UZ65.exe	86
PID 3696 wrote to memory of 3916	3696	UtilZone__UZ65.exe	86
PID 3696 wrote to memory of 3916	3696	UtilZone__UZ65.exe	86
PID 3696 wrote to memory of 3916	3696	UtilZone__UZ65.exe	86

C:\Users\Admin\AppData\Local\Temp\UtilZone__UZ65.exe
"C:\Users\Admin\AppData\Local\Temp\UtilZone__UZ65.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3696
- C:\Windows\SysWOW64\explorer.exe
  C:\Windows\system32\explorer.exe
  2⤵
  - Deletes itself
  PID:3916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsoA8F3.tmp\NSISdl.dll

Filesize
14KB

MD5
a5f8399a743ab7f9c88c645c35b1ebb5

SHA1
168f3c158913b0367bf79fa413357fbe97018191

SHA256
dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9

SHA512
824e567f5211bf09c7912537c7836d761b0934207612808e9a191f980375c6a97383dbc6b4a7121c6b5f508cbfd7542a781d6b6b196ca24841f73892eec5e977

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoA8F3.tmp\SelfDel.dll

Filesize
4KB

MD5
7cff7fe2caea5184d98c147e7e263132

SHA1
21f39d3d0dd5f7198d67ef30e95d10ae3460093e

SHA256
281c39b733579e031c62bdd247b41543ece1fe3bd6eda26fc8ad474b10f33101

SHA512
fb1161b8571d1d0c67e2df0d571b08f5e7a73f81409aed847344154d02406910629181bcce4e18e998ec472f51a6a1b40d956a010abdd10e850413aafa87808a

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsoA8F3.tmp\UAC.dll

Filesize
13KB

MD5
29858669d7da388d1e62b4fd5337af12

SHA1
756b94898429a9025a04ae227f060952f1149a5f

SHA256
c24c005daa7f5578c4372b38d1be6be5e27ef3ba2cdb9b67fee15cac406eba62

SHA512
6f4d538f2fe0681f357bab73f633943c539ddc1451efa1d1bb76d70bb47aa68a05849e36ae405cc4664598a8194227fa7053de6dbce7d6c52a20301293b3c85f

Download Submit
memory/3696-17-0x0000000074E90000-0x0000000074E99000-memory.dmp

Filesize
36KB

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