7629ee3fd879aaa8fdc2eb6220047657dea4d4559e677c9245a86ebcd97fc3ef

Analysis

max time kernel
151s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231127-en
resource tags

arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
submitted
10/12/2023, 19:47

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General

Target

tuc5.exe
Size

6.9MB
MD5

f62bac49de652189bbbe840c23d55b2e
SHA1

e8828efd2e1184cd10d0db93501b824bd5cb2a60
SHA256

7629ee3fd879aaa8fdc2eb6220047657dea4d4559e677c9245a86ebcd97fc3ef
SHA512

39ffa487e01947d0830627f93db000e0b5484f5b147a492a6b124ee2379d2154f967ea27dd8ea9695f2c8fa2c28c8aac16dcbf926bf1a5d16a5907c89c10b1df
SSDEEP

196608:YxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:QNztzQlcDPXus98d9Jzj

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
4000	tuc5.tmp
3024	crtgame.exe
4040	crtgame.exe

Loads dropped DLL 3 IoCs

pid	Process
4000	tuc5.tmp
4000	tuc5.tmp
4000	tuc5.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	45.155.250.90

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 63 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-BIDS5.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-0LAPV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-9UMT5.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-45PS5.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-MI2G9.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-UHQLV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-L66V3.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-P7J9D.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-JLVNI.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-AE3MO.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-RLGQB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-1R670.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-G5H7B.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-J6UUA.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-NJPIS.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-UNH1I.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-RBTCK.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-C0OG0.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-GHD0G.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-V5DK6.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-63RD3.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-44QNH.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\lessmsi\is-LBNND.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-PPRC9.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-ADPK1.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-7GVHT.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-6FQOF.tmp	tuc5.tmp
File opened for modification	C:\Program Files (x86)\CRTGame\crtgame.exe	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-237IO.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-M3D7A.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-NSSED.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-2BIJB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-VFNK3.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-R45KU.tmp	tuc5.tmp
File opened for modification	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\is-V9FG7.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-BM0CF.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-Q7F1O.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-NT3AV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-F7UBO.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-JCJ9G.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-H2F56.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-1CNPF.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-PD7NO.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-43GPK.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-9LDQB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-K85GL.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-79F6J.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-49SC5.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-5VJ8D.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-H0JJL.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-CQD6Q.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-2SMQR.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-S6C1R.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\is-P5M59.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-Q9E6M.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-KIVPT.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-OSHVV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-RQBOV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-G7RT7.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-4CHLL.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-MBF19.tmp	tuc5.tmp

Runs net.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4000	tuc5.tmp

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 5060 wrote to memory of 4000	5060	tuc5.exe	87
PID 5060 wrote to memory of 4000	5060	tuc5.exe	87
PID 5060 wrote to memory of 4000	5060	tuc5.exe	87
PID 4000 wrote to memory of 668	4000	tuc5.tmp	91
PID 4000 wrote to memory of 668	4000	tuc5.tmp	91
PID 4000 wrote to memory of 668	4000	tuc5.tmp	91
PID 4000 wrote to memory of 3024	4000	tuc5.tmp	92
PID 4000 wrote to memory of 3024	4000	tuc5.tmp	92
PID 4000 wrote to memory of 3024	4000	tuc5.tmp	92
PID 4000 wrote to memory of 4832	4000	tuc5.tmp	97
PID 4000 wrote to memory of 4832	4000	tuc5.tmp	97
PID 4000 wrote to memory of 4832	4000	tuc5.tmp	97
PID 4000 wrote to memory of 4040	4000	tuc5.tmp	95
PID 4000 wrote to memory of 4040	4000	tuc5.tmp	95
PID 4000 wrote to memory of 4040	4000	tuc5.tmp	95
PID 4832 wrote to memory of 3644	4832	net.exe	98
PID 4832 wrote to memory of 3644	4832	net.exe	98
PID 4832 wrote to memory of 3644	4832	net.exe	98

C:\Users\Admin\AppData\Local\Temp\tuc5.exe
"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5060
- C:\Users\Admin\AppData\Local\Temp\is-RI131.tmp\tuc5.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-RI131.tmp\tuc5.tmp" /SL5="$D0052,7025884,54272,C:\Users\Admin\AppData\Local\Temp\tuc5.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4000
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query
    3⤵
    PID:668
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3024
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4040
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 10
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4832
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 10
      4⤵
      PID:3644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\CRTGame\crtgame.exe

Filesize
640KB

MD5
91bcc79dace198f118dcf4bfc3069c57

SHA1
0a5630c413002b9595fee18de707781ff88ce7a4

SHA256
123fe5624361a177b6eca655d957445d7c64cc2aeea499b6eaf0c5ab19bf2056

SHA512
f3a1d4306020e118a46bbe045cc08e45b5d30f353fbd0edfcd684790f6595619b7713ecff9df6d678a6b02dd2b14e7ae9f5816f2301a85b9269f852815e6a2d2

Download Submit
C:\Program Files (x86)\CRTGame\crtgame.exe

Filesize
512KB

MD5
8d887a5abcd764c4d55b7e0481e7d9e5

SHA1
2b8001314ba1db303de9b3d33210714877df896a

SHA256
a4909ab2fbe4cc5f6c84ca9f27c40619c659d169cb21946afbb862a9db86d91e

SHA512
e40a021d5a34b554dbab559eef7c97c4b27ffb472d48a7d2887865c00368b0f424569e8f98a55f94177069137f58067249e39f92da1358dd0f7625b9093e6d72

Download Submit
C:\Program Files (x86)\CRTGame\crtgame.exe

Filesize
2.1MB

MD5
3362bac458070e33d0cabcda1e4b735c

SHA1
76ac1f5b96667d9621eedd92ab0704b9c7a129b0

SHA256
4dbfd9df16a57d8ff7a00a378fe737efc179f53f2ce975daeaedbaa6ab8bcecd

SHA512
59ed8a9d16e100ad91d98ad3a08eabe148234633e59bfb4bef1b63e5a54c3e63193f088ad1538c4898a7a6ac5ead65a2e244ae64bc5325bbf87e763474c5a5ce

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-B83V8.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-B83V8.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-RI131.tmp\tuc5.tmp

Filesize
687KB

MD5
f448d7f4b76e5c9c3a4eaff16a8b9b73

SHA1
31808f1ffa84c954376975b7cdb0007e6b762488

SHA256
7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

SHA512
f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

Download Submit
memory/3024-153-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/3024-156-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/3024-155-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/3024-152-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4000-161-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4000-164-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/4000-7-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/4040-177-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-180-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-160-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-207-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-163-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-203-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-167-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-168-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-171-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-182-0x00000000007A0000-0x0000000000842000-memory.dmp

Filesize
648KB

Download
memory/4040-158-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-200-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-174-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-181-0x00000000007A0000-0x0000000000842000-memory.dmp

Filesize
648KB

Download
memory/4040-187-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-190-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-192-0x00000000007A0000-0x0000000000842000-memory.dmp

Filesize
648KB

Download
memory/4040-194-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/4040-197-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/5060-144-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5060-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5060-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download