urelas | 83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1

Analysis

max time kernel
92s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 23:23

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General

Target

83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe
Size

57KB
MD5

74dd0f7a98e3ac1f239ae7c82dd2aac9
SHA1

88ee9b07cb0583936b2df3ad43e4f2f1fdc5948c
SHA256

83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1
SHA512

637b828a9715b9bf4fc1c2b49e24732019e322814449ce617bba077ae41f08909f1156a97153168304248af55a0c79dd1abc06a24093cd528628edafbf0c7c06
SSDEEP

1536:amZ+4hcuX5uZ79jmvFQTXnz9yQ/PFBhl1K:amZ+luXwy2f9LDhDK

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
Urelas family
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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe

Executes dropped EXE 1 IoCs

pid	Process
4448	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biudfw.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 4448	2204	83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe	83
PID 2204 wrote to memory of 4448	2204	83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe	83
PID 2204 wrote to memory of 4448	2204	83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe	83
PID 2204 wrote to memory of 208	2204	83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe	84
PID 2204 wrote to memory of 208	2204	83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe	84
PID 2204 wrote to memory of 208	2204	83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe	84

C:\Users\Admin\AppData\Local\Temp\83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe
"C:\Users\Admin\AppData\Local\Temp\83be74a8e87d218df966ff6c18e5eff67f15f96121500df3d7c13d5fdb9575a1.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2204
- 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:4448
- 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:208

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

C:\Users\Admin\AppData\Local\Temp\biudfw.exe

Filesize
57KB

MD5
00de51c75955c9aaadc00e9c6cf1f0d6

SHA1
f541accd6e6b55b2fd81650b9d0b2e1f0de7fd0b

SHA256
48c836992e0885817d3e6b6b7fdabd32fdb36285a340f9a750b6bdd752f3d399

SHA512
4043bbe4e2b68ede45e9bc6f8208a200cb40d7b032097bbf55873ba967d25701f64bc7d173da254357bb99549b04bb2eda90fd331178b13e73984e2736f47813

Download Submit
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini

Filesize
512B

MD5
26625b4ca7658f7ba4dc7d982782323c

SHA1
574aa314998c39e683675ccf457b0305341a4aaf

SHA256
c494e0ffeee72023dac244366c08072f677ba328ba805f9e480abc2824e99283

SHA512
5a9af4c6be10240dec0d33b37bc6f6836f1db5d0a2a9dd158d63848a8a97dad68e2d9217aca2b2d1cf122d9534aba0d23b247f6686c4ff934bd7035a927d9b9d

Download Submit
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat

Filesize
338B

MD5
41202c61b94cb9f4746d3054ea4567d8

SHA1
5b9447505421cc781e66d7b722a3c4bb289767c1

SHA256
d3f41211e9bdcdf89ea30125217d5aea3cd81faef73b429632c67d46a9d7bfd1

SHA512
0a50994af63bd88609689823746fca6151d342edf0163bc42c7d8003f526037a25a95f227a5b353f237b288b4b7ffb0a83e1112fa1fd833f5cd29978de41cfc3

Download Submit
memory/2204-0-0x0000000000430000-0x0000000000462000-memory.dmp

Filesize
200KB

Download
memory/2204-18-0x0000000000430000-0x0000000000462000-memory.dmp

Filesize
200KB

Download
memory/4448-15-0x0000000000AD0000-0x0000000000B02000-memory.dmp

Filesize
200KB

Download
memory/4448-21-0x0000000000AD0000-0x0000000000B02000-memory.dmp

Filesize
200KB

Download
memory/4448-23-0x0000000000AD0000-0x0000000000B02000-memory.dmp

Filesize
200KB

Download
memory/4448-29-0x0000000000AD0000-0x0000000000B02000-memory.dmp

Filesize
200KB

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