urelas | a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5

General

Target

a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe
Size

140KB
MD5

911fcedac2288feb9b40d3d554a35c48
SHA1

20049de78dbb85134a24ebcf63b4cbd340712339
SHA256

a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5
SHA512

065d6f220bce7aa4e91e74cea0baf85bf50da71bdc4f6c0f08725aefacdbeb20e465c15ea13431c7a2b3b4ca36a98c7137e906ad3fd3e8d94b04dd822cf1c8a7
SSDEEP

1536:P/oEkqfCZ10zcT9Yh8AIXcjyz9cOXfiXGImcatMrsWjcdf6odgR5APfI9:P/5kqCxiXEcO3XfGf2tMUf6odgR5A49

Score

10^/10

urelas discovery trojan

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

Processes:

cmd.exe

pid process

2196 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

biudfw.exe

pid process

1604 biudfw.exe
Loads dropped DLL 1 IoCs

Processes:

a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe

pid process

2924 a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2196	cmd.exe

pid	process
1604	biudfw.exe

pid	process
2924	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe

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

Processes:

a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exebiudfw.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.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

Processes:

a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe

description	pid	process	target process
PID 2924 wrote to memory of 1604	2924	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe	biudfw.exe
PID 2924 wrote to memory of 1604	2924	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe	biudfw.exe
PID 2924 wrote to memory of 1604	2924	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe	biudfw.exe
PID 2924 wrote to memory of 1604	2924	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe	biudfw.exe
PID 2924 wrote to memory of 2196	2924	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe	cmd.exe
PID 2924 wrote to memory of 2196	2924	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe	cmd.exe
PID 2924 wrote to memory of 2196	2924	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe	cmd.exe
PID 2924 wrote to memory of 2196	2924	a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe
"C:\Users\Admin\AppData\Local\Temp\a8f465852b204bf3b159c4624ca9accf4fb90b01ccb8b9775e35c0c4c8757be5.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2924
- 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:1604
- 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:2196

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\biudfw.exe

Filesize
140KB

MD5
ab8d58dcf30dcb42f6b25c72f48f11e2

SHA1
fc39e934f4d9c4ebaec9bccdc017508c3d208bb7

SHA256
d5a25832c1a7c61e946e882307b7711977b19d88651a916868bcfbad87d5673f

SHA512
0157015d74c74e7459d09920d07e2c7b1242b927b77b3c2333a9788a2a6aee5e6edd39fa821f2a53959ff3615e9e3ec4ae1ce434aa7700749846a19c0b8ea457

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

Filesize
512B

MD5
0ecda9ecaa423d5a8481985b7d3d5a77

SHA1
ecc237c20c234cf9c0e20b39a39ab27244dc7971

SHA256
caed69520592602de846673610507a47e22e0fb108e8e88ba1a85b314607f0a9

SHA512
82ce4bfc411781d187b6151383064f18e22b37f5f03d783476fed1c8ba74ee38dc74b16badf96961e22d6b63ae31425ae785c17fa3bd5d767ae3b0bd9652fe3a

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

Filesize
338B

MD5
5212edd3e13aac9b517160e4e6102f66

SHA1
d24e4d01f5b4a09c03d04ec7b23fcf9c26d76a26

SHA256
656ce2b575836ce46130998617a47fec152faa0af0852ab48244a4e0232de6cf

SHA512
0d38e670ae688419e96006886280df975e5472bcb56d97584a629ff15f93f064508a2456fac9dbe056811acde8c8dff9ef15e655bb2493b66be04fc647e0e8a4

Download Submit
memory/1604-17-0x0000000000D90000-0x0000000000DB7000-memory.dmp

Filesize
156KB

Download
memory/1604-21-0x0000000000D90000-0x0000000000DB7000-memory.dmp

Filesize
156KB

Download
memory/1604-22-0x0000000000D90000-0x0000000000DB7000-memory.dmp

Filesize
156KB

Download
memory/2924-0-0x0000000000BD0000-0x0000000000BF7000-memory.dmp

Filesize
156KB

Download
memory/2924-16-0x0000000000490000-0x00000000004B7000-memory.dmp

Filesize
156KB

Download
memory/2924-18-0x0000000000BD0000-0x0000000000BF7000-memory.dmp

Filesize
156KB

Download

Analysis

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