urelas | c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60

General

Target

c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe
Size

59KB
MD5

782f8cf518922c4ca35503fda848fb41
SHA1

80b6a19f18d5c41926bb2bbff057ba722d6a5614
SHA256

c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60
SHA512

c6ecb764cd6656eb24f8de645b3248d85bea5fca7cb3ac2e311349a3ac7f2cef5b52d7947f0049539eef7bbf278cfadd97843532bd1114aa055eca46b672c231
SSDEEP

1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8l:6n25DbaMySmJAhbvoutl

Score

10^/10

urelas discovery trojan upx

Malware Config

Extracted

Family

urelas

C2

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe

Executes dropped EXE 1 IoCs

pid	Process
1840	biudfw.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2420-0-0x0000000000380000-0x00000000003AC000-memory.dmp	upx
behavioral2/files/0x0007000000023c84-6.dat	upx
behavioral2/memory/1840-10-0x0000000000770000-0x000000000079C000-memory.dmp	upx
behavioral2/memory/2420-15-0x0000000000380000-0x00000000003AC000-memory.dmp	upx
behavioral2/memory/1840-18-0x0000000000770000-0x000000000079C000-memory.dmp	upx
behavioral2/memory/1840-20-0x0000000000770000-0x000000000079C000-memory.dmp	upx
behavioral2/memory/1840-26-0x0000000000770000-0x000000000079C000-memory.dmp	upx

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	biudfw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 1840	2420	c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe	83
PID 2420 wrote to memory of 1840	2420	c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe	83
PID 2420 wrote to memory of 1840	2420	c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe	83
PID 2420 wrote to memory of 2016	2420	c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe	84
PID 2420 wrote to memory of 2016	2420	c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe	84
PID 2420 wrote to memory of 2016	2420	c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe	84

C:\Users\Admin\AppData\Local\Temp\c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe
"C:\Users\Admin\AppData\Local\Temp\c3d700c1e82511995368e16dafffd7aeab5a8274a31bc0471610d4d83d38df60.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- 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:1840
- 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:2016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
59KB

MD5
8a40cf5c18c1a44d17ea694a1c63e649

SHA1
59028f2040254e5b5e71a791e8bb6c9ec92c72bf

SHA256
18822a3ff26baa8efe0d48e28ee30824a9c1be43275022c882737626a6b1788d

SHA512
af200727a2e6c2a675cbd415a3b95855024038d68367fd7620b999e1e3d656eb22848f3220c80360a2afa5513b9c60a05553fcb4515dca44e9585daa63c7eae2

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

Filesize
512B

MD5
b4a86880004da8726288d7ec954885a8

SHA1
1bab1cfbdc2c540246210bc7852f8fe7e8357b31

SHA256
c85016a9115aeb492bf116ab05791a9c3e6e30c39274767bd0476bd56a37db46

SHA512
22758f6c6de591c99f8f9857c1b03e55c242f0a4987d376b08c30bc608027d1574a228a8230099ddac2a3214663396b016e85d085204155a5ec26f87a28496b4

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

Filesize
338B

MD5
af74a57a4b734acf261283a3784ed2f0

SHA1
8d5e530af96ec9ddd980fd2b30d1559bda055c6e

SHA256
319cffdf83d7cca2cff45ad23e68377f17be3481fd77b47b19d6150299f12582

SHA512
3f1db4fc35aa2fa8ae51239c94914e0c2c5eb461ee0ad4099dc3664d03eacdc1a25d24c945e00f5bc388a66f6acc4b93cd6e17fd2b4d2f713e640513fe7d098e

Download Submit
memory/1840-10-0x0000000000770000-0x000000000079C000-memory.dmp

Filesize
176KB

Download
memory/1840-18-0x0000000000770000-0x000000000079C000-memory.dmp

Filesize
176KB

Download
memory/1840-20-0x0000000000770000-0x000000000079C000-memory.dmp

Filesize
176KB

Download
memory/1840-26-0x0000000000770000-0x000000000079C000-memory.dmp

Filesize
176KB

Download
memory/2420-0-0x0000000000380000-0x00000000003AC000-memory.dmp

Filesize
176KB

Download
memory/2420-15-0x0000000000380000-0x00000000003AC000-memory.dmp

Filesize
176KB

Download

Analysis

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