urelas | 6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b

General

Target

6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe
Size

287KB
MD5

da93eaa1ced6f1b2cebba50e26071d67
SHA1

4b5c0d50b73fc44f136b3e01bb0425d1e10894e1
SHA256

6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b
SHA512

577c4735f9464b0ef2c8d0acff668f727aff30b37401d92bf15be1b5e45278ebbc70e6bdfa217b5fa009d62bdb839abe3004eb3e73d67f66ed1923e27e8a17dd
SSDEEP

6144:vf0WBaLjBbjftxoSpj/ZQUWvYqDUbsbX6EdK77RXW7VGwrLO8O7+:vMJj9/oSFWUWvXbX5g7pW7JB

Score

10^/10

urelas discovery trojan upx

Malware Config

Extracted

Family

urelas

C2

121.88.5.183

218.54.30.235

Signatures

Urelas
Urelas is a trojan targeting card games.
trojan urelas
Urelas family
urelas

Deletes itself 1 IoCs

pid	Process
1836	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1544	sander.exe

Loads dropped DLL 1 IoCs

pid	Process
1700	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1700-0-0x00000000008E0000-0x000000000097C000-memory.dmp	upx
behavioral1/files/0x0009000000015f6d-4.dat	upx
behavioral1/memory/1544-10-0x0000000000170000-0x000000000020C000-memory.dmp	upx
behavioral1/memory/1700-18-0x00000000008E0000-0x000000000097C000-memory.dmp	upx
behavioral1/memory/1544-21-0x0000000000170000-0x000000000020C000-memory.dmp	upx
behavioral1/memory/1544-27-0x0000000000170000-0x000000000020C000-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	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sander.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 1544	1700	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe	30
PID 1700 wrote to memory of 1544	1700	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe	30
PID 1700 wrote to memory of 1544	1700	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe	30
PID 1700 wrote to memory of 1544	1700	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe	30
PID 1700 wrote to memory of 1836	1700	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe	31
PID 1700 wrote to memory of 1836	1700	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe	31
PID 1700 wrote to memory of 1836	1700	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe	31
PID 1700 wrote to memory of 1836	1700	6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe	31

C:\Users\Admin\AppData\Local\Temp\6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe
"C:\Users\Admin\AppData\Local\Temp\6647ac98d5694e6dd92c9de91bc8e0f0f1e3d93a05c4957cbdfdcc47791b1c1b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Users\Admin\AppData\Local\Temp\sander.exe
  "C:\Users\Admin\AppData\Local\Temp\sander.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1544
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\_sannuyex.bat" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1836

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\_sannuyex.bat

Filesize
341B

MD5
043eb9fa0431ab58f921ec0c05747bb2

SHA1
afa592fd022390dfe4e56e3294dcc946318dae2e

SHA256
d819ef7bef66fa2b987ae83a108ca8e5cf2caacf489d500ee48b9f4e3e5ba04f

SHA512
0973278b521ee5541ce0f7145b90162926f02798a7660d123ab727eba6f65cf47e2def52e1408178014800cdfd30b156c87431caf24b418867039bcd2f5909ff

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

Filesize
512B

MD5
c7c76dea547f2562c2a20d650e166582

SHA1
31c402fc0ac529e367327b075d2b7ef914896d9e

SHA256
0fdb7f65bd7be2c3d7cce8d13f51572b3809042a6dc0051fdbfb945851a5e9cb

SHA512
b006e74309e1f0370f65e1429d02a8040caddc668db9bfcec01c3793a1e05ef2df4266c97a8eba099966b8b59e24c2eaa087a094ff0bdd8d58af4e8bc9a3834d

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

Filesize
287KB

MD5
f918502bb5c19414180710a2c8558b82

SHA1
5da0d4f4a8f32c4e879fd72f78a2f6faaebf09a1

SHA256
41b619bff72d43c649e04f9dd22ded70444c23d4d40259fb895b2929ad8dfa20

SHA512
c19487de98bfc576017af7a37445d49d925921cc39f8d2d54fe0a3e1a508679b41cf2e2b9d1f5f7a784f56b79e5fee298b7ead480969aaf3a528dfa185982818

Download Submit
memory/1544-10-0x0000000000170000-0x000000000020C000-memory.dmp

Filesize
624KB

Download
memory/1544-21-0x0000000000170000-0x000000000020C000-memory.dmp

Filesize
624KB

Download
memory/1544-27-0x0000000000170000-0x000000000020C000-memory.dmp

Filesize
624KB

Download
memory/1700-0-0x00000000008E0000-0x000000000097C000-memory.dmp

Filesize
624KB

Download
memory/1700-8-0x00000000028F0000-0x000000000298C000-memory.dmp

Filesize
624KB

Download
memory/1700-18-0x00000000008E0000-0x000000000097C000-memory.dmp

Filesize
624KB

Download

Analysis

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