urelas | df4febefba7addc0e1d19578d7bc17431744500d5ab884dd127aab0a2dbd8003

General

Target

938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe
Size

59KB
MD5

784a06a4e32209052c721bea8cd3c548
SHA1

19f251db0d6159372abfa63e48e468d716892287
SHA256

df4febefba7addc0e1d19578d7bc17431744500d5ab884dd127aab0a2dbd8003
SHA512

c165b90f302254f274868ef0c2f7deb1de06bdca87ade6bde75217f6e11ab20cd77d0b4c4bbe35499f801bd849db5bf23e0e6252a1e417930376d845699050f1
SSDEEP

1536:6W82C0Db1edMckBI1kmJAhTPY6pnouy8qS:6n25DbaMySmJAhbvoutqS

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe

Executes dropped EXE 1 IoCs

pid	Process
2640	biudfw.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/928-0-0x00000000007F0000-0x000000000081C000-memory.dmp	upx
behavioral2/files/0x000e000000023b64-6.dat	upx
behavioral2/memory/2640-12-0x00000000008B0000-0x00000000008DC000-memory.dmp	upx
behavioral2/memory/928-15-0x00000000007F0000-0x000000000081C000-memory.dmp	upx
behavioral2/memory/2640-18-0x00000000008B0000-0x00000000008DC000-memory.dmp	upx
behavioral2/memory/2640-20-0x00000000008B0000-0x00000000008DC000-memory.dmp	upx
behavioral2/memory/2640-26-0x00000000008B0000-0x00000000008DC000-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	938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.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 6 IoCs

description	pid	Process	procid_target
PID 928 wrote to memory of 2640	928	938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe	89
PID 928 wrote to memory of 2640	928	938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe	89
PID 928 wrote to memory of 2640	928	938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe	89
PID 928 wrote to memory of 3784	928	938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe	90
PID 928 wrote to memory of 3784	928	938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe	90
PID 928 wrote to memory of 3784	928	938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe	90

C:\Users\Admin\AppData\Local\Temp\938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe
"C:\Users\Admin\AppData\Local\Temp\938a9946bd7de4609cf4fce1e7a818b55c5f29dd06c92d3519e6b8841582d26bN.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:928
- 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:2640
- 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:3784

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
959b0d3f51db73396a1774f0eebde208

SHA1
8e45832963ead7aa9a1461e1073ef2b2a06fa6df

SHA256
75217dba574294d6a68c2c3849e52bf3ce330c053062609bd83e9bdd3d75011c

SHA512
60893c28961d93941b3c04f37493cc719743d758f0cf56fd5903930959798a1fc8df370b5523db1f445a468506b9c87f79ff25284392c953d485e93f1a2e6773

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
360852114374a1aaf9b1703133c1c96a

SHA1
54da7f44e762fdd0ff73fc321ae39200ece18310

SHA256
5ca2fd22091daacdf4b31d62addae98c4087c9a7bc03aa8db92b023afaf3b491

SHA512
e78456e8aedcab934500af1d905f08e67af44ffce45bd2d042db9165ee14d30eee250c46dbe9964897c03a0a24b6e2e75324f9ed1361a3bc79658266fbf31e79

Download Submit
memory/928-0-0x00000000007F0000-0x000000000081C000-memory.dmp

Filesize
176KB

Download
memory/928-15-0x00000000007F0000-0x000000000081C000-memory.dmp

Filesize
176KB

Download
memory/2640-12-0x00000000008B0000-0x00000000008DC000-memory.dmp

Filesize
176KB

Download
memory/2640-18-0x00000000008B0000-0x00000000008DC000-memory.dmp

Filesize
176KB

Download
memory/2640-20-0x00000000008B0000-0x00000000008DC000-memory.dmp

Filesize
176KB

Download
memory/2640-26-0x00000000008B0000-0x00000000008DC000-memory.dmp

Filesize
176KB

Download

Analysis

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