urelas | 6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16

General

Target

6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe
Size

59KB
MD5

d81faddf588f35b564c79cda1d396d8b
SHA1

797e499f6c280d642e81006a8300e509d0033c3e
SHA256

6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16
SHA512

da5a79f20932a94491ae55a5a71c95dc369cb7481e246c5a50d9ab04a0733b2022f03f45312b46aabdcc5fca64a256a87afceaa58c3c064568b8caed2d010e92
SSDEEP

1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8h:6n25DbaMySmJAhbvouth

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

Deletes itself 1 IoCs

pid	Process
2216	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1500	biudfw.exe

Loads dropped DLL 1 IoCs

pid	Process
1800	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1800-0-0x0000000000940000-0x000000000096C000-memory.dmp	upx
behavioral1/memory/1800-18-0x0000000000940000-0x000000000096C000-memory.dmp	upx
behavioral1/memory/1500-17-0x00000000012C0000-0x00000000012EC000-memory.dmp	upx
behavioral1/files/0x0009000000016d58-4.dat	upx
behavioral1/memory/1500-21-0x00000000012C0000-0x00000000012EC000-memory.dmp	upx
behavioral1/memory/1500-24-0x00000000012C0000-0x00000000012EC000-memory.dmp	upx
behavioral1/memory/1500-31-0x00000000012C0000-0x00000000012EC000-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	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.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 1800 wrote to memory of 1500	1800	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe	31
PID 1800 wrote to memory of 1500	1800	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe	31
PID 1800 wrote to memory of 1500	1800	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe	31
PID 1800 wrote to memory of 1500	1800	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe	31
PID 1800 wrote to memory of 2216	1800	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe	32
PID 1800 wrote to memory of 2216	1800	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe	32
PID 1800 wrote to memory of 2216	1800	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe	32
PID 1800 wrote to memory of 2216	1800	6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe	32

C:\Users\Admin\AppData\Local\Temp\6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe
"C:\Users\Admin\AppData\Local\Temp\6d55322e5234aa0bea0ef4524871b5085121343ceb9662696e3267327b4aac16.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1800
- 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:1500
- 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:2216

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
7a38a264c92e193f46779aa60f31d41f

SHA1
3f2c1f69296418795482a287d439c020471487bd

SHA256
e070028afe886f2a5561f8653aa787f6ada08a2098416c8d21dbe83c1cfba5a8

SHA512
044c586889c8e28b2c1228cc5dd18721257e082c99f9fa9699910a3166a5c82292d097fd9d20fcc9a72746fcfb5b181f1c994db7ec5ca063dd1cd1da2e8721bf

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

Filesize
59KB

MD5
53efff921cdc40158552325a0200b5a2

SHA1
4de202e28e1313fab484a611c3143439b8cbd881

SHA256
e3b3803820c6a2f6c062d6c6e9c735db5591bfee13997b30f75f0f4828d3028c

SHA512
f6d7ed7313771cd3b792d5825918530d45b7d0a8975c4d30ff52de81c6e0bcd5d9cad5a789bdf818a168b21a1126677687ef3231941c961f9e3cd81b0d655531

Download Submit
memory/1500-17-0x00000000012C0000-0x00000000012EC000-memory.dmp

Filesize
176KB

Download
memory/1500-21-0x00000000012C0000-0x00000000012EC000-memory.dmp

Filesize
176KB

Download
memory/1500-24-0x00000000012C0000-0x00000000012EC000-memory.dmp

Filesize
176KB

Download
memory/1500-31-0x00000000012C0000-0x00000000012EC000-memory.dmp

Filesize
176KB

Download
memory/1800-0-0x0000000000940000-0x000000000096C000-memory.dmp

Filesize
176KB

Download
memory/1800-18-0x0000000000940000-0x000000000096C000-memory.dmp

Filesize
176KB

Download
memory/1800-16-0x0000000001F20000-0x0000000001F4C000-memory.dmp

Filesize
176KB

Download

Analysis

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