urelas | 2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcf

Analysis

max time kernel
94s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
30/09/2024, 17:27

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General

Target
2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe
Size 70KB
Sample240930-v1j8dsxblq
SHA256 2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcf
MD5 75298b8c190d0cf7b16024fc22a57020
SHA1 a82b4489a291971a709644256dc36bfb915da016
SHA512 0291747967b816cbe701523327350e4462275669872ac242eb7efe87debf6bb40dde0bae3c4352d779163795e1a07c09ef4ec75d00b34e28d44f1380087c79a7
SSDEEP 1536:v6fqsAPQYGmPzmZDDZrV8sMQXGkfn33n7z5WeIuhCarawW:yLAYUzmdD0sMQl7d7IuhCaeR
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

urelas discovery trojan

Malware Config

Extracted

Family

urelas

218.54.47.76
218.54.47.77
218.54.47.74

Signatures

Urelas
Urelas is a trojan targeting card games.
trojan urelas

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe

Executes dropped EXE 1 IoCs

pid	Process
4996	biudfw.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biudfw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 4996	2536	2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe	82
PID 2536 wrote to memory of 4996	2536	2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe	82
PID 2536 wrote to memory of 4996	2536	2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe	82
PID 2536 wrote to memory of 3400	2536	2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe	83
PID 2536 wrote to memory of 3400	2536	2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe	83
PID 2536 wrote to memory of 3400	2536	2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe	83

C:\Users\Admin\AppData\Local\Temp\2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe
"C:\Users\Admin\AppData\Local\Temp\2fff6614a95c20383a399b2f309e9d52c0f17f7e2c1cc682aff9be3941f38dcfN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Users\Admin\AppData\Local\Temp\biudfw.exe
  "C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4996
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

biudfw.exe

Path C:\Users\Admin\AppData\Local\Temp\biudfw.exe
Size 70KB
SHA256 0e5be7db31ee1f45e126f1f8d34aecad4293b34c4a9de24f932d46352c48aadb
MD5 0b75effa3a79d2ff82adad8c3c56447b
SHA1 c7f74487f211a64a5f2bf7d2526c36502cf63741
SHA512 944bf68927542c620155b1ce76331bfc75569466f0b890926dca14eb89b9ee0baa4fdae1dd815c090bcc86fb3ab1c19499deede952bfd2321dcad36285bcd2d5
SSDEEP 1536:v6fqsAPQYGmPzmZDDZrV8sMQXGkfn33n7z5WeIuhCarawq:yLAYUzmdD0sMQl7d7IuhCaeB
MD5 SHA1 SHA512 SSDEEP

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golfinfo.ini

Path C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
Size 512B
SHA256 d1ea9a17b5a635a121e82e7963d3b134f74050da9debcd40c9622f50c5d38fe5
MD5 1c9b2720af0ca9528b47898d9c7f4799
SHA1 80495f16e333f54ecc700252323c2a7cb7d751e1
SHA512 5afe876f2cd887458656b1747bce08d03f26ef286bcc83efa93e0111be856d0564bee4d6ef5637c167626bac121f7371b69c7952502d47784ac9ad568bf53eac
MD5 SHA1 SHA512

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sanfdr.bat

Path C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
Size 340B
SHA256 98e3292885c8708e76fd9ce3ff8f5f757206196da5858f1ecfd78ab47c75f1a4
MD5 2fee159de7555ad69bfa302861564a52
SHA1 bbb34217e3bb0f297da8618cc32c80e867bab629
SHA512 5d8982a684d59ccbf9987b70e7136e563ec693dcfe63de8f53f3f938fe2b27bc362fd9c73f885bd69f2ade58688d8f8c01710c99d828b6e019fb250af9a42975
MD5 SHA1 SHA512

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memory/2536-0-0x0000000000DF0000-0x0000000000E17000-memory.dmp

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memory/2536-17-0x0000000000DF0000-0x0000000000E17000-memory.dmp

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memory/4996-13-0x00000000009C0000-0x00000000009E7000-memory.dmp

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memory/4996-20-0x00000000009C0000-0x00000000009E7000-memory.dmp

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memory/4996-22-0x00000000009C0000-0x00000000009E7000-memory.dmp

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memory/4996-29-0x00000000009C0000-0x00000000009E7000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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