urelas | a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69

General

Target

a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe
Size

59KB
MD5

22a23401fba5f4ddd9a241671edca140
SHA1

30ca214734fdac60f218b46b95eb5c20289a0465
SHA256

a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69
SHA512

7dad733b4ffe7cd85b7543eead9eddbfb18e36ddf92b0c4939e0ea100b2729b187544d4b46a83c6f2b55116c3c502864f3ef2d6f57f30f9ba32114040821442d
SSDEEP

1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8a:6n25DbaMySmJAhbvouta

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	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe

Executes dropped EXE 1 IoCs

pid	Process
2644	biudfw.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2600-0-0x0000000000590000-0x00000000005BC000-memory.dmp	upx
behavioral2/files/0x000d000000023b2d-6.dat	upx
behavioral2/memory/2644-12-0x00000000000E0000-0x000000000010C000-memory.dmp	upx
behavioral2/memory/2600-15-0x0000000000590000-0x00000000005BC000-memory.dmp	upx
behavioral2/memory/2644-18-0x00000000000E0000-0x000000000010C000-memory.dmp	upx
behavioral2/memory/2644-20-0x00000000000E0000-0x000000000010C000-memory.dmp	upx
behavioral2/memory/2644-27-0x00000000000E0000-0x000000000010C000-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	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.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 2600 wrote to memory of 2644	2600	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	88
PID 2600 wrote to memory of 2644	2600	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	88
PID 2600 wrote to memory of 2644	2600	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	88
PID 2600 wrote to memory of 4088	2600	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	89
PID 2600 wrote to memory of 4088	2600	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	89
PID 2600 wrote to memory of 4088	2600	a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe	89

C:\Users\Admin\AppData\Local\Temp\a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe
"C:\Users\Admin\AppData\Local\Temp\a3385d8728294cd9b1e997b4e01bee6e5040d7ee18f58105903464769ae98e69N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- 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:2644
- 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:4088

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
58d9ea3227d361fa7e3c95680f0960bd

SHA1
c62076dce8645cc1498bc0ae0f6a0532c6c8b3ce

SHA256
4005cd283950e3ac3f159d08a1c05de142705b6503b43ba2dfb680dfb2f92e7c

SHA512
d91987ecac64af3d99d6a1299facc5314218783047de9b5c39ae5980852eb49ace617719b888173ccf883184e91d50ca1a0c85a0dfe1085ccf0a11b590fb1b25

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
340B

MD5
429c3e9c4f0f7e547ad9296968306119

SHA1
02850ffd6cfb523032fa9405b7f9f5504f3a3ad5

SHA256
79027ac5fa5eedb7b2d4088361bbe4fdd2213429113b22875a03b0c41009ca28

SHA512
c0eb6cb01f7949ad1588b317af5a45e5627a47720fca181ed3e406fe5a55635e9a395a8eb50a0867263db511d0c1ec0a630d72de4adfff37d4e3fcbc0e405991

Download Submit
memory/2600-0-0x0000000000590000-0x00000000005BC000-memory.dmp

Filesize
176KB

Download
memory/2600-15-0x0000000000590000-0x00000000005BC000-memory.dmp

Filesize
176KB

Download
memory/2644-12-0x00000000000E0000-0x000000000010C000-memory.dmp

Filesize
176KB

Download
memory/2644-18-0x00000000000E0000-0x000000000010C000-memory.dmp

Filesize
176KB

Download
memory/2644-20-0x00000000000E0000-0x000000000010C000-memory.dmp

Filesize
176KB

Download
memory/2644-27-0x00000000000E0000-0x000000000010C000-memory.dmp

Filesize
176KB

Download

Analysis

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