urelas | 13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02

General

Target

13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe
Size

58KB
MD5

122ad54f0cf8aeaf670461c8f76de7bf
SHA1

336b85ba6902cafb7d02e1cd1f80b67bad1e961f
SHA256

13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02
SHA512

6ee6659bf70e6fc6c82579864fb53d4fb3cc507e9dfb13745b7d93a5e0ae8148e267fa718dad7faba0b755dabaf115761946e05ceb2407060626807d69da037f
SSDEEP

1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8Dm:6n25DbaMySmJAhbvoutC

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

Deletes itself 1 IoCs

pid	Process
2496	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1728	biudfw.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1712-0-0x0000000000EF0000-0x0000000000F1C000-memory.dmp	upx
behavioral1/files/0x0035000000016c5a-4.dat	upx
behavioral1/memory/1728-16-0x0000000001260000-0x000000000128C000-memory.dmp	upx
behavioral1/memory/1712-19-0x0000000000EF0000-0x0000000000F1C000-memory.dmp	upx
behavioral1/memory/1728-22-0x0000000001260000-0x000000000128C000-memory.dmp	upx
behavioral1/memory/1728-25-0x0000000001260000-0x000000000128C000-memory.dmp	upx
behavioral1/memory/1728-32-0x0000000001260000-0x000000000128C000-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	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.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 8 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 1728	1712	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe	29
PID 1712 wrote to memory of 1728	1712	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe	29
PID 1712 wrote to memory of 1728	1712	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe	29
PID 1712 wrote to memory of 1728	1712	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe	29
PID 1712 wrote to memory of 2496	1712	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe	30
PID 1712 wrote to memory of 2496	1712	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe	30
PID 1712 wrote to memory of 2496	1712	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe	30
PID 1712 wrote to memory of 2496	1712	13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe	30

C:\Users\Admin\AppData\Local\Temp\13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe
"C:\Users\Admin\AppData\Local\Temp\13426980493b1ade6c5e36e080f2fec6afe429e9301a98818989b7fa455c7e02.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- 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:1728
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

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\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
47e1227a10155a1d437b4101d3ef73ff

SHA1
b8398a6904fc3143e421117ad07999e40242f311

SHA256
31439856048a7b5c94a2a7ae523ec9ff5ee2522849e487f2b8feba5c23f7e3a7

SHA512
3e6eb5663b28289fcef26468f906ee4d03cb402864b9d68e4689ed4df692cdcd565a4d3f61022751259f3a4ae0d34b4fdefc7afbf80bb62950c367bb05f831e6

Download Submit
\Users\Admin\AppData\Local\Temp\biudfw.exe

Filesize
58KB

MD5
dc90d67c1bce822903b22fc536942f80

SHA1
aee6a3104ed449c62a5614c911967a0d5e8f3a2e

SHA256
7e265ade064b795a2d6a8995f0291c868f156d666a83bb59291d782753d67265

SHA512
fd186af42cc0e3b4cf4124f9a7bdbec5383bfa0b4ecb3bd3e81c2416fdee45d9b4a8a4d49320b76d0a7627da6a6b63eb769c9adaaa21006582e91aa0e90a7d16

Download Submit
memory/1712-0-0x0000000000EF0000-0x0000000000F1C000-memory.dmp

Filesize
176KB

Download
memory/1712-9-0x0000000000AA0000-0x0000000000ACC000-memory.dmp

Filesize
176KB

Download
memory/1712-19-0x0000000000EF0000-0x0000000000F1C000-memory.dmp

Filesize
176KB

Download
memory/1728-16-0x0000000001260000-0x000000000128C000-memory.dmp

Filesize
176KB

Download
memory/1728-22-0x0000000001260000-0x000000000128C000-memory.dmp

Filesize
176KB

Download
memory/1728-25-0x0000000001260000-0x000000000128C000-memory.dmp

Filesize
176KB

Download
memory/1728-32-0x0000000001260000-0x000000000128C000-memory.dmp

Filesize
176KB

Download

Analysis

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