urelas | f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afce

General

Target

f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe
Size

641KB
MD5

d61f155a04d2b2801f8219bca8fbab10
SHA1

3d93ba284f59854a7a05dd59d10f17ac02807618
SHA256

f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afce
SHA512

869266800d97e573c8a48a55ad212bdc16cc216f180c52ce19c6799ac162475b0900d4179cb55985190914383bbfbb82ddfe1bf3e6c48459607edc547eb66495
SSDEEP

12288:jBjUUmQfHYO+2LI5++CHYq6gCop2KQU1TUNW7q5m:jBvmcYO+2s59QP61KQQUNWp

Score

10^/10

urelas discovery trojan upx

Malware Config

Extracted

Family

urelas

C2

1.234.83.146

133.242.129.155

218.54.31.226

218.54.30.235

218.54.31.165

Signatures

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

Deletes itself 1 IoCs

pid	Process
3036	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2192	zecoh.exe
1816	sigeg.exe

Loads dropped DLL 2 IoCs

pid	Process
2532	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe
2192	zecoh.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0004000000004ed7-23.dat	upx
behavioral1/memory/1816-29-0x0000000000400000-0x00000000004A7000-memory.dmp	upx
behavioral1/memory/1816-31-0x0000000000400000-0x00000000004A7000-memory.dmp	upx
behavioral1/memory/1816-32-0x0000000000400000-0x00000000004A7000-memory.dmp	upx
behavioral1/memory/1816-33-0x0000000000400000-0x00000000004A7000-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	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zecoh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sigeg.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe
1816	sigeg.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2532 wrote to memory of 2192	2532	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe	30
PID 2532 wrote to memory of 2192	2532	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe	30
PID 2532 wrote to memory of 2192	2532	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe	30
PID 2532 wrote to memory of 2192	2532	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe	30
PID 2532 wrote to memory of 3036	2532	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe	31
PID 2532 wrote to memory of 3036	2532	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe	31
PID 2532 wrote to memory of 3036	2532	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe	31
PID 2532 wrote to memory of 3036	2532	f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe	31
PID 2192 wrote to memory of 1816	2192	zecoh.exe	34
PID 2192 wrote to memory of 1816	2192	zecoh.exe	34
PID 2192 wrote to memory of 1816	2192	zecoh.exe	34
PID 2192 wrote to memory of 1816	2192	zecoh.exe	34

C:\Users\Admin\AppData\Local\Temp\f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe
"C:\Users\Admin\AppData\Local\Temp\f05b2d0a90ba1df0734cb30a4fc76309ddcfd39ab40338ec3b9d1cd99a43afceN.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2532
- C:\Users\Admin\AppData\Local\Temp\zecoh.exe
  "C:\Users\Admin\AppData\Local\Temp\zecoh.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2192
- - C:\Users\Admin\AppData\Local\Temp\sigeg.exe
    "C:\Users\Admin\AppData\Local\Temp\sigeg.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:1816
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\_uinsey.bat" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3036

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\_uinsey.bat

Filesize
342B

MD5
a413fca0087c440ff5e62e80c3a3865a

SHA1
335856923bf4f6f7e86cef18d481f532498961c4

SHA256
621c837caddbdd7068a561e26be6c2837dbad1d4811a029d7ee95d70e37cee90

SHA512
282df54001e9f733099eaff6cd5089f3238d600a5c53b502a926dccc0422c231c5e3d3e17fed2a93fff6aeec5908dfaa7aa748f71ffe916317899f2913b68f75

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

Filesize
512B

MD5
dec38d0c468995d65dab9f5d37272c69

SHA1
9260d5b83435a6f47ef8b52069898009d406d0f2

SHA256
7f9eb745e9bcbce0e5c7c0c1b5851df6ba31521a211c9ef483c13de5d727954d

SHA512
67bb8de6d50ea302693ab490d7dbe7ecbc6d51896075d6e9a51b88b99889cc19f0d197354f06ccaec7e4efa616f3d6bdae8ada6ee41075fde2136d243bb73e11

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

Filesize
205KB

MD5
b3de466617bfdbf0d5e2fa834d6e0190

SHA1
0e0ef61f1f243c0d0fa90406f03115af3a3500c6

SHA256
8bfd303ca1eb49f36c0b3bfce6615135181fb412e604e440a243ce6444581661

SHA512
ec63d55767d2e35258eaff3eba9f04eb14e738e2a90bcbe9ee97da49d931c18e718413e17cd109596e4111e7f60aaadf6d7982ea3b91e42e9a83d234fb1126b1

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

Filesize
641KB

MD5
8b09f456589761454710a6307b50076b

SHA1
0fadf6f1c91add2cd7d40195116bc22a59382bdd

SHA256
caa9f33f099487b8a431603744f86ebf3237e0d6284b20a3a1d6bb6e8e8b8b3d

SHA512
1c159ebe50276ce726a9c24fc8efb002dc9d1facd6e357ae1ca9a01114ac121d5a2f5ab54c37186586885897aab4c7734f2e727c3eca8c979d66f0fb32b6c77c

Download Submit
memory/1816-29-0x0000000000400000-0x00000000004A7000-memory.dmp

Filesize
668KB

Download
memory/1816-33-0x0000000000400000-0x00000000004A7000-memory.dmp

Filesize
668KB

Download
memory/1816-32-0x0000000000400000-0x00000000004A7000-memory.dmp

Filesize
668KB

Download
memory/1816-31-0x0000000000400000-0x00000000004A7000-memory.dmp

Filesize
668KB

Download
memory/2192-20-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2192-26-0x0000000003180000-0x0000000003227000-memory.dmp

Filesize
668KB

Download
memory/2192-28-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2532-0-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2532-17-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2532-14-0x0000000002870000-0x0000000002910000-memory.dmp

Filesize
640KB

Download

Analysis

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