urelas | a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21-11-2024 07:53

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General

Target

a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe
Size

467KB
MD5

0f5e4bbfcfd0acca9f07f391dcf1e589
SHA1

ac4160ff4b83c36db425c6b68845c34ed6935557
SHA256

a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62
SHA512

a7aa485826d8fa53ad0511962e6c89e490fd43492317e7d987f18239b22b14c5b648e860342fe98095f7e5c45d98255cb0371d969f1e139d5cf57fc8692a3c8c
SSDEEP

12288:m6twjLHj/8/GcHUIdPPzEmvTnabAh0ZnAr1Uv2:m6tQCG0UUPzEkTn4AC1+1

Score

10^/10

urelas discovery trojan upx

Malware Config

Extracted

Family

urelas

1.234.83.146

133.242.129.155

218.54.31.226

218.54.30.235

Signatures

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

Deletes itself 1 IoCs

pid	Process
2788	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
340	ojfig.exe
1248	dykua.exe

Loads dropped DLL 2 IoCs

pid	Process
1740	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe
340	ojfig.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1248-29-0x0000000000400000-0x000000000049F000-memory.dmp	upx
behavioral1/files/0x0004000000004ed7-28.dat	upx
behavioral1/memory/1248-31-0x0000000000400000-0x000000000049F000-memory.dmp	upx
behavioral1/memory/1248-32-0x0000000000400000-0x000000000049F000-memory.dmp	upx
behavioral1/memory/1248-33-0x0000000000400000-0x000000000049F000-memory.dmp	upx
behavioral1/memory/1248-34-0x0000000000400000-0x000000000049F000-memory.dmp	upx
behavioral1/memory/1248-35-0x0000000000400000-0x000000000049F000-memory.dmp	upx
behavioral1/memory/1248-36-0x0000000000400000-0x000000000049F000-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 4 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	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ojfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dykua.exe

Suspicious behavior: EnumeratesProcesses 54 IoCs

pid	Process
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe
1248	dykua.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 340	1740	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe	30
PID 1740 wrote to memory of 340	1740	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe	30
PID 1740 wrote to memory of 340	1740	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe	30
PID 1740 wrote to memory of 340	1740	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe	30
PID 1740 wrote to memory of 2788	1740	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe	31
PID 1740 wrote to memory of 2788	1740	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe	31
PID 1740 wrote to memory of 2788	1740	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe	31
PID 1740 wrote to memory of 2788	1740	a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe	31
PID 340 wrote to memory of 1248	340	ojfig.exe	34
PID 340 wrote to memory of 1248	340	ojfig.exe	34
PID 340 wrote to memory of 1248	340	ojfig.exe	34
PID 340 wrote to memory of 1248	340	ojfig.exe	34

C:\Users\Admin\AppData\Local\Temp\a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe
"C:\Users\Admin\AppData\Local\Temp\a86f81147abd5f480509100ae389b789eb600a404f173eebdec3b653a6daed62.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Users\Admin\AppData\Local\Temp\ojfig.exe
  "C:\Users\Admin\AppData\Local\Temp\ojfig.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:340
- - C:\Users\Admin\AppData\Local\Temp\dykua.exe
    "C:\Users\Admin\AppData\Local\Temp\dykua.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1248
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\_sannuy.bat" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\_sannuy.bat

Filesize
340B

MD5
6c4708585b360860ef816d0d6d3b3655

SHA1
a1f0a223f31a9fbc8e4fbe1baadc1861081ace1a

SHA256
faafab5754a0cc58182156aef5d7dd79731fa10f990a12c534bc5849887a7cff

SHA512
2c2db0f7dd2e805c99a0fb0f627dc0230d2ce508c9dfb16a203392439b87993380f8c3a107f8ccdd78ceb5266c811375970db90c11e2e366deb2b5ad7447793c

Download Submit
C:\Users\Admin\AppData\Local\Temp\dykua.exe

Filesize
198KB

MD5
d03df720310e589e2e404a23852217b9

SHA1
214e468ff7abeccd8bc7e413641147b6ba8ef529

SHA256
e6045a0e903f03e750319c8a744426ebfb6f15b3222e2bbfa08a2461b80a1cbc

SHA512
47ac1a89f66bcc8480b5e7cb31f75cc5ebd68f3c145c3d5400b8cafdbd9f4d9d7eb5a1ba2bd3328f01c86e457365028fc1bc06122e23a838d46c0a2363ae4a3b

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

Filesize
512B

MD5
f0257b9a616db2683f87b48fc7c5cf28

SHA1
faf4a3aa5c2f9c153e01b7b90d82425030df6254

SHA256
5e65152e21158fad9ec57017a6ce729b1ee6300eee13d5c08ae89ea6fdb3a1f4

SHA512
09585f1b27407455f17cd944ab172dbdf04cee9ed1e0126256e89392c6591e545e819594b44c60a8c3faebdb2ffeae99dcc7526e8065922637eecf50af0d643a

Download Submit
C:\Users\Admin\AppData\Local\Temp\ojfig.exe

Filesize
467KB

MD5
862ca105d0740a461e4d4ed15afc11d4

SHA1
e698a0edf662ae30012ce542f84317921de95b25

SHA256
0c77448158ec48e25336095fdbab86653b764e2d4028e6c75bc277e76b6d8894

SHA512
a212616de614e89fe4ad3463dfe9d84809f682eb043ef60f70b0416be728b433f7b6f28b63fa9b0bbc94cac813dd7dce98918e02db26e055545cb068eed5a8e8

Download Submit
memory/340-21-0x0000000000B90000-0x0000000000C0C000-memory.dmp

Filesize
496KB

Download
memory/340-27-0x0000000000B90000-0x0000000000C0C000-memory.dmp

Filesize
496KB

Download
memory/340-10-0x0000000000B90000-0x0000000000C0C000-memory.dmp

Filesize
496KB

Download
memory/1248-29-0x0000000000400000-0x000000000049F000-memory.dmp

Filesize
636KB

Download
memory/1248-31-0x0000000000400000-0x000000000049F000-memory.dmp

Filesize
636KB

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memory/1248-32-0x0000000000400000-0x000000000049F000-memory.dmp

Filesize
636KB

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memory/1248-33-0x0000000000400000-0x000000000049F000-memory.dmp

Filesize
636KB

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memory/1248-34-0x0000000000400000-0x000000000049F000-memory.dmp

Filesize
636KB

Download
memory/1248-35-0x0000000000400000-0x000000000049F000-memory.dmp

Filesize
636KB

Download
memory/1248-36-0x0000000000400000-0x000000000049F000-memory.dmp

Filesize
636KB

Download
memory/1740-0-0x0000000001230000-0x00000000012AC000-memory.dmp

Filesize
496KB

Download
memory/1740-6-0x0000000000910000-0x000000000098C000-memory.dmp

Filesize
496KB

Download
memory/1740-18-0x0000000001230000-0x00000000012AC000-memory.dmp

Filesize
496KB

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