urelas | 80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337

General

Target

80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe
Size

59KB
MD5

fb97e69a03e886ea582f3174c6c366d0
SHA1

10c8f14c299f0842dd2abd1326c44630c4332afe
SHA256

80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337
SHA512

01db6de6a2013f7485251922fe4cfad50232a57c30483346b80c151950724896d09fa7d9057d646c160284815f0f88dbab1e8f3bdd9aec4ab43931fb936b096b
SSDEEP

1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8A:6n25DbaMySmJAhbvoutA

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
2812	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2748	biudfw.exe

Loads dropped DLL 1 IoCs

pid	Process
1892	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1892-0-0x0000000000F90000-0x0000000000FBC000-memory.dmp	upx
behavioral1/files/0x002b000000015c7b-4.dat	upx
behavioral1/memory/1892-6-0x0000000000360000-0x000000000038C000-memory.dmp	upx
behavioral1/memory/1892-18-0x0000000000F90000-0x0000000000FBC000-memory.dmp	upx
behavioral1/memory/2748-21-0x0000000000330000-0x000000000035C000-memory.dmp	upx
behavioral1/memory/2748-23-0x0000000000330000-0x000000000035C000-memory.dmp	upx
behavioral1/memory/2748-29-0x0000000000330000-0x000000000035C000-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	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.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 1892 wrote to memory of 2748	1892	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe	30
PID 1892 wrote to memory of 2748	1892	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe	30
PID 1892 wrote to memory of 2748	1892	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe	30
PID 1892 wrote to memory of 2748	1892	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe	30
PID 1892 wrote to memory of 2812	1892	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe	31
PID 1892 wrote to memory of 2812	1892	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe	31
PID 1892 wrote to memory of 2812	1892	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe	31
PID 1892 wrote to memory of 2812	1892	80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe	31

C:\Users\Admin\AppData\Local\Temp\80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe
"C:\Users\Admin\AppData\Local\Temp\80fc578e951687a5e19d69dc68898a7b3708f2e5a8ac4a255d3a2214d465c337N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1892
- 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:2748
- 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:2812

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
340B

MD5
09bb93489dac920e5683b44883513ca7

SHA1
a5ad97b2c360335c0b4b3a3c135a932a5344df58

SHA256
ca0d9c602340531c4daeacc513e073ac67331007a16f702098bacf69a238a514

SHA512
3b6dff2d3e9faf6f59d2d44cbf535d60283236aba993e1115ac208e1401daf528aecdadd655cd2d8e70e8a21a30d3ab92a734e1b1a01ce1474a1f71900c87df8

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

Filesize
59KB

MD5
30fe422ae5808b594f0b2bbf3e0b0844

SHA1
fa186126a994c39ba5ff68a197f07de0248f1afb

SHA256
942f0acbaf20128b68dc21c7abe089b337b8873e0d6caf02514ddabbec2f91db

SHA512
0dd3ad2ae43a9c1e2d316493512ae2f63d1871ee0af26c914c8e2dc800521502c3558711bf7581c23ce2844f9a157bd1fad0899131beeed03085603daef2fb8d

Download Submit
memory/1892-0-0x0000000000F90000-0x0000000000FBC000-memory.dmp

Filesize
176KB

Download
memory/1892-6-0x0000000000360000-0x000000000038C000-memory.dmp

Filesize
176KB

Download
memory/1892-18-0x0000000000F90000-0x0000000000FBC000-memory.dmp

Filesize
176KB

Download
memory/2748-21-0x0000000000330000-0x000000000035C000-memory.dmp

Filesize
176KB

Download
memory/2748-23-0x0000000000330000-0x000000000035C000-memory.dmp

Filesize
176KB

Download
memory/2748-29-0x0000000000330000-0x000000000035C000-memory.dmp

Filesize
176KB

Download

Analysis

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