urelas | fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12

General

Target

fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe
Size

59KB
MD5

b269daf79e997646d7f0b54f4026767e
SHA1

48be882dafee69d5c395ede80d7b0a1bfda4c0d1
SHA256

fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12
SHA512

df5943abad67ea3d8802558a8d45a15b1cfc7271a48b0f0b83c2b9d7c29d5dbe1a77d651268a0c8bd1e86f6f9ee2caf2d594fd8744e518c94950d72513a71602
SSDEEP

1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8M:6n25DbaMySmJAhbvoutM

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe

Executes dropped EXE 1 IoCs

pid	Process
1380	biudfw.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4280-0-0x0000000000E10000-0x0000000000E3C000-memory.dmp	upx
behavioral2/files/0x000e000000023aa4-6.dat	upx
behavioral2/memory/1380-12-0x0000000000610000-0x000000000063C000-memory.dmp	upx
behavioral2/memory/4280-15-0x0000000000E10000-0x0000000000E3C000-memory.dmp	upx
behavioral2/memory/1380-18-0x0000000000610000-0x000000000063C000-memory.dmp	upx
behavioral2/memory/1380-20-0x0000000000610000-0x000000000063C000-memory.dmp	upx
behavioral2/memory/1380-26-0x0000000000610000-0x000000000063C000-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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	biudfw.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4280 wrote to memory of 1380	4280	fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe	86
PID 4280 wrote to memory of 1380	4280	fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe	86
PID 4280 wrote to memory of 1380	4280	fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe	86
PID 4280 wrote to memory of 2020	4280	fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe	87
PID 4280 wrote to memory of 2020	4280	fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe	87
PID 4280 wrote to memory of 2020	4280	fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe	87

C:\Users\Admin\AppData\Local\Temp\fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe
"C:\Users\Admin\AppData\Local\Temp\fa8c3312deda4254508221f546dff238cac57d5675bfa21b6a401d1b9f7afd12.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4280
- 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:1380
- 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:2020

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

Loading Replay Monitor...

Downloads

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

Filesize
59KB

MD5
4fea0ca92011b3eb50d51d18808ca000

SHA1
6b5f401980e2b66fda4f8bef6e255c1857ce60ed

SHA256
7baaeb629046a4b901a5080986403a54cb1e48fd22d4988b466514d2ee3db2ca

SHA512
a1752dc40b5cd6237b17fc3fc21ab81576139a639b3804ceb9688a0dcea1c6be481969dbcb3a9f729775277e705cde3a196f8601ed7913cb4c5cdcdd5e582b42

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
998e74eb7d1a4e1d55477455accfb8b7

SHA1
338e95eaf8e0077c86bcbde71131871c0ac6e13e

SHA256
617f7de646b385c812236c4f31be5c74c540ce501a23ad813b1688affe0f7287

SHA512
7e5c057f6d51fa153f18236a54bd808eb3d4340fe64e1c538f846ba52b077e63287cb3c536e65a5a87a3f8adcd537985342c2285b80d1a908b2260003a1236a3

Download Submit
memory/1380-12-0x0000000000610000-0x000000000063C000-memory.dmp

Filesize
176KB

Download
memory/1380-18-0x0000000000610000-0x000000000063C000-memory.dmp

Filesize
176KB

Download
memory/1380-20-0x0000000000610000-0x000000000063C000-memory.dmp

Filesize
176KB

Download
memory/1380-26-0x0000000000610000-0x000000000063C000-memory.dmp

Filesize
176KB

Download
memory/4280-0-0x0000000000E10000-0x0000000000E3C000-memory.dmp

Filesize
176KB

Download
memory/4280-15-0x0000000000E10000-0x0000000000E3C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing