urelas | d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44

General

Target

d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe
Size

59KB
MD5

2c62f684fe081b1c20b4541ba3ebcf60
SHA1

7174805c363c0d0fce98459bee1f62780a74db78
SHA256

d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44
SHA512

e8233a7c689ce39f74471a4d28ca392e45e9ca9f8f1244bbbdc4bc43478f47a8382ac8ccba6266e2294adbf3a0dc0f08729db9b9d8477ba0bd9be693c5e5d14c
SSDEEP

1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8D:6n25DbaMySmJAhbvoutD

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
2340	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1864	biudfw.exe

Loads dropped DLL 1 IoCs

pid	Process
3064	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3064-0-0x0000000001230000-0x000000000125C000-memory.dmp	upx
behavioral1/files/0x0009000000015d2a-4.dat	upx
behavioral1/memory/1864-17-0x0000000001010000-0x000000000103C000-memory.dmp	upx
behavioral1/memory/3064-19-0x0000000001230000-0x000000000125C000-memory.dmp	upx
behavioral1/memory/1864-22-0x0000000001010000-0x000000000103C000-memory.dmp	upx
behavioral1/memory/1864-24-0x0000000001010000-0x000000000103C000-memory.dmp	upx
behavioral1/memory/1864-31-0x0000000001010000-0x000000000103C000-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	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.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 3064 wrote to memory of 1864	3064	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe	30
PID 3064 wrote to memory of 1864	3064	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe	30
PID 3064 wrote to memory of 1864	3064	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe	30
PID 3064 wrote to memory of 1864	3064	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe	30
PID 3064 wrote to memory of 2340	3064	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe	31
PID 3064 wrote to memory of 2340	3064	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe	31
PID 3064 wrote to memory of 2340	3064	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe	31
PID 3064 wrote to memory of 2340	3064	d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe	31

C:\Users\Admin\AppData\Local\Temp\d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe
"C:\Users\Admin\AppData\Local\Temp\d64f488c8d99bfc44511163edc8909e1fa6e2847caaa729601c16e7ce8893d44N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3064
- 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:1864
- 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:2340

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

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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
340B

MD5
d6228795a57bb3762ca92ff5f5d3330e

SHA1
de79f58d3b21d809bc8871d8004e0179e3a932a8

SHA256
7fbc4e4c8264af2aca3d8ef3d2d484a65e0401edb130b3bdea9dcf4179b96356

SHA512
f2deb4665329a992f865783ff00a53c9bab4dcc715eb939a78b264ad8ca3ae6c1134d1fc5170c9b6344b00e8dac13a497d55aa575f1c89d58753014ed9a9131b

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

Filesize
59KB

MD5
9ecfe48c25aebccffd938b26fc73b318

SHA1
d5c805cfb69307b638c858002e4f6899ac5dbaa0

SHA256
12ba094b198ddc63486a3a8bb5c920e025bcdfa489e53ee9cd8bab156b63b263

SHA512
2e28a90b608eeef613b794fbf8165f13156150b835ed2d07124607b635646f5909341c35f22e0368ea8dea28716004bb8774ff1682e4df7e5e3ed9ae4cdc96d0

Download Submit
memory/1864-17-0x0000000001010000-0x000000000103C000-memory.dmp

Filesize
176KB

Download
memory/1864-22-0x0000000001010000-0x000000000103C000-memory.dmp

Filesize
176KB

Download
memory/1864-24-0x0000000001010000-0x000000000103C000-memory.dmp

Filesize
176KB

Download
memory/1864-31-0x0000000001010000-0x000000000103C000-memory.dmp

Filesize
176KB

Download
memory/3064-0-0x0000000001230000-0x000000000125C000-memory.dmp

Filesize
176KB

Download
memory/3064-8-0x0000000000560000-0x000000000058C000-memory.dmp

Filesize
176KB

Download
memory/3064-19-0x0000000001230000-0x000000000125C000-memory.dmp

Filesize
176KB

Download

Analysis

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