urelas | 636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056a

General

Target

636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe
Size

59KB
MD5

efd495722840bb313ca2fa9db1b724e0
SHA1

ed6649f06f7a8553f03dc6648ec8a0be1bc2e5b3
SHA256

636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056a
SHA512

c3a416d202b44899e10b412c131f85f01be667cb10986d072e0be5aa5fdc9d1250bf07b00886d6f8b3f088cb77515abe39492f107dbec9e7e474d33550ce3665
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe

Executes dropped EXE 1 IoCs

pid	Process
2580	biudfw.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2344-0-0x0000000000CA0000-0x0000000000CCC000-memory.dmp	upx
behavioral2/files/0x0012000000023a12-6.dat	upx
behavioral2/memory/2580-12-0x00000000000D0000-0x00000000000FC000-memory.dmp	upx
behavioral2/memory/2344-14-0x0000000000CA0000-0x0000000000CCC000-memory.dmp	upx
behavioral2/memory/2580-17-0x00000000000D0000-0x00000000000FC000-memory.dmp	upx
behavioral2/memory/2580-19-0x00000000000D0000-0x00000000000FC000-memory.dmp	upx
behavioral2/memory/2580-26-0x00000000000D0000-0x00000000000FC000-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	biudfw.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2344 wrote to memory of 2580	2344	636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe	88
PID 2344 wrote to memory of 2580	2344	636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe	88
PID 2344 wrote to memory of 2580	2344	636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe	88
PID 2344 wrote to memory of 3048	2344	636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe	89
PID 2344 wrote to memory of 3048	2344	636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe	89
PID 2344 wrote to memory of 3048	2344	636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe	89

C:\Users\Admin\AppData\Local\Temp\636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe
"C:\Users\Admin\AppData\Local\Temp\636f62090d65675be20e6ea64127d760c390f043bae8bf777221982c4a54056aN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2344
- 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:2580
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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
59KB

MD5
e071b474ab49415bd8d911432669134b

SHA1
eb7e412693d6ec3747bef7627df04ec7c3632e62

SHA256
3827012cb635edb61dbbacbe5f1055359687af734a14c1f6cbc634170e2bf7a4

SHA512
23a0e84ba4a9f1a5c398014be8a453488666ac805cf40c36b0288413c5d8b2ef9fad3cb1401c0802881320a9d2a37f0647f49275cd8093de9a30954540cee116

Download Submit
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
aaafcd6a3ecb49728947aeac3c474076

SHA1
71cb04a557ff0acc49b4a2feb6b0d8c43ce56dae

SHA256
8919962339bd5af66892ce18e8c15c47ee38b1efa49aa4e7e14a01f51ee65bee

SHA512
885be2378c459d4552555ad379d7e352d0638643a76370ddc1408b533a194b68b5c405dd1ac98546593924d28a29b1043771ea9b9aa6b3005abf119b7da5f668

Download Submit
memory/2344-0-0x0000000000CA0000-0x0000000000CCC000-memory.dmp

Filesize
176KB

Download
memory/2344-14-0x0000000000CA0000-0x0000000000CCC000-memory.dmp

Filesize
176KB

Download
memory/2580-12-0x00000000000D0000-0x00000000000FC000-memory.dmp

Filesize
176KB

Download
memory/2580-17-0x00000000000D0000-0x00000000000FC000-memory.dmp

Filesize
176KB

Download
memory/2580-19-0x00000000000D0000-0x00000000000FC000-memory.dmp

Filesize
176KB

Download
memory/2580-26-0x00000000000D0000-0x00000000000FC000-memory.dmp

Filesize
176KB

Download

Analysis

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