c515b1f35dbc723a49f32a31a517630a24941631ffac4fa91675c96620ed31be

Analysis

max time kernel
145s
max time network
128s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
10/12/2023, 20:42

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General

Target

tuc5.exe
Size

6.9MB
MD5

d1ffc275100ea20b9d1507a3abf50e3e
SHA1

f283be58dd4d72a73c1cbefe60d7c57c4d257a93
SHA256

c515b1f35dbc723a49f32a31a517630a24941631ffac4fa91675c96620ed31be
SHA512

9b053073675d61b185d55e0bc94838dd21e990abd4fdb88cb3218c3c3aadf415e225dc69040ae823b3046bd8d4601f810c60ff38ba1bd71e90861951da11adaf
SSDEEP

196608:sxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:kNztzQlcDPXus98d9Jzj

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
2004	tuc5.tmp
1908	crtgame.exe
2772	crtgame.exe

Loads dropped DLL 6 IoCs

pid	Process
1728	tuc5.exe
2004	tuc5.tmp
2004	tuc5.tmp
2004	tuc5.tmp
2004	tuc5.tmp
2004	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	81.31.197.38

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-0J5OS.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-AAF53.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-8UMPP.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-B81QN.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-F0RCA.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-9HF7U.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-AEQ17.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-7VCQB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-UJJKQ.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-BE1TP.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-V5JGE.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-BTDO2.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-S84UP.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-B9D0U.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-STLCO.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-3J5PC.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\is-IUSI2.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-G12P4.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-DGGF8.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-O17PH.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-0UMEB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-73R0B.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-TOUNG.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-V3OKG.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-0LV3A.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-90217.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-PRI8K.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-4A9PM.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-1TGUV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-35I11.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-POQF5.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-V0N3N.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\lessmsi\is-JAU8V.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-CUSKQ.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-AKOG6.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-23Q6O.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-6HP6V.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-6KII8.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-5V6GQ.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-06348.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\is-P3U9D.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-UOO24.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-639NV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-T12SP.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-TKQ9O.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-LTB95.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-8CCAD.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-BB2GE.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-JID33.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-6OGBI.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-GU4MF.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-SSNVI.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-KV30L.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-G68QO.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-QNGB7.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-UL585.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-08E2J.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-IPTKA.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-50LFV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-M9DQ0.tmp	tuc5.tmp
File opened for modification	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	tuc5.tmp

Runs net.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2004	tuc5.tmp

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 2004	1728	tuc5.exe	28
PID 1728 wrote to memory of 2004	1728	tuc5.exe	28
PID 1728 wrote to memory of 2004	1728	tuc5.exe	28
PID 1728 wrote to memory of 2004	1728	tuc5.exe	28
PID 1728 wrote to memory of 2004	1728	tuc5.exe	28
PID 1728 wrote to memory of 2004	1728	tuc5.exe	28
PID 1728 wrote to memory of 2004	1728	tuc5.exe	28
PID 2004 wrote to memory of 1556	2004	tuc5.tmp	31
PID 2004 wrote to memory of 1556	2004	tuc5.tmp	31
PID 2004 wrote to memory of 1556	2004	tuc5.tmp	31
PID 2004 wrote to memory of 1556	2004	tuc5.tmp	31
PID 2004 wrote to memory of 1908	2004	tuc5.tmp	29
PID 2004 wrote to memory of 1908	2004	tuc5.tmp	29
PID 2004 wrote to memory of 1908	2004	tuc5.tmp	29
PID 2004 wrote to memory of 1908	2004	tuc5.tmp	29
PID 2004 wrote to memory of 2744	2004	tuc5.tmp	34
PID 2004 wrote to memory of 2744	2004	tuc5.tmp	34
PID 2004 wrote to memory of 2744	2004	tuc5.tmp	34
PID 2004 wrote to memory of 2744	2004	tuc5.tmp	34
PID 2004 wrote to memory of 2772	2004	tuc5.tmp	33
PID 2004 wrote to memory of 2772	2004	tuc5.tmp	33
PID 2004 wrote to memory of 2772	2004	tuc5.tmp	33
PID 2004 wrote to memory of 2772	2004	tuc5.tmp	33
PID 2744 wrote to memory of 2820	2744	net.exe	35
PID 2744 wrote to memory of 2820	2744	net.exe	35
PID 2744 wrote to memory of 2820	2744	net.exe	35
PID 2744 wrote to memory of 2820	2744	net.exe	35

C:\Users\Admin\AppData\Local\Temp\tuc5.exe
"C:\Users\Admin\AppData\Local\Temp\tuc5.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Users\Admin\AppData\Local\Temp\is-7V2IK.tmp\tuc5.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-7V2IK.tmp\tuc5.tmp" /SL5="$40152,7025884,54272,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:2004
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1908
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query
    3⤵
    PID:1556
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2772
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 10
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2744
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 10
      4⤵
      PID:2820

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
425KB

MD5
d17c5e7a1e37d5127fffa19e8f5fc8b4

SHA1
d179cbee65a91f08fbc9459f59842eef8bf8f536

SHA256
5f3f0b1c288a04416bf54092436bc1abb45b8951d44beaff3bd7fb27cfb264cd

SHA512
ebda737a87290dd564bb2030ef9968d9819cc0ac9671306d8718995e47a21080c589b18600e694484c956b7d9bfbeb026ed43fa19a9cc60b2a8560ef56599db9

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

Filesize
372KB

MD5
a680c32d32493087ccbdc7de93db485a

SHA1
3264c4049f33327e49ef2c8a2a43ffa2d3b243eb

SHA256
4f7b1065f6b17a135a5ad0f68829325e51d072ec3b27c0f7ee867fb1effd0756

SHA512
ede77387be231f6d58a43380153a6f3ff628c48dbb0139c352a35d306bf3d090ba4b53f48f16652a45848767b67d8618aff59f1b284d89322c764109565b3372

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

Filesize
283KB

MD5
9438a81b423675547f329269a6c8d797

SHA1
5441f64ec9f1aaca13283494e654ee1a3a864b50

SHA256
d0f392ca3e8ddea42913963b9df003f9bcdd7a2630bcb1d9a02e28972da67b47

SHA512
bcc72ff9531fcadc6698b9499f13d61fc24db7aa2791f09f9f640b3c245a7f02997209adb2ff70a221b4f2948b51e2a40eb2650db00b35300827544aa671e6ec

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-7V2IK.tmp\tuc5.tmp

Filesize
687KB

MD5
f448d7f4b76e5c9c3a4eaff16a8b9b73

SHA1
31808f1ffa84c954376975b7cdb0007e6b762488

SHA256
7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

SHA512
f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

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

Filesize
717KB

MD5
4d0a5b77a658cfc827d025ebccedb967

SHA1
6949949d98728b445aa5133c79fbf4e0dcb8f8f5

SHA256
1064876be7d08a1127aec042875db5e38240ddf7bb75fefa2c13647166df7156

SHA512
fa79c957db8476a88ebffc4ce5aff4a7fa0fc307e89e816db1bb6e48c5366d7fdc01fd35b02e01faef97ba83ac9d5088a59659b8874b5d59078d8b875503fc00

Download Submit
\Users\Admin\AppData\Local\Temp\is-M56E6.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-M56E6.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
\Users\Admin\AppData\Local\Temp\is-M56E6.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1728-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1728-163-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1908-153-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/1908-154-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/1908-157-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/1908-158-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2004-164-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2004-166-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2004-169-0x00000000038F0000-0x0000000003B0E000-memory.dmp

Filesize
2.1MB

Download
memory/2004-152-0x00000000038F0000-0x0000000003B0E000-memory.dmp

Filesize
2.1MB

Download
memory/2004-11-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2772-177-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-184-0x0000000002A90000-0x0000000002B32000-memory.dmp

Filesize
648KB

Download
memory/2772-162-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-170-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-171-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-174-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-160-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-180-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-183-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-165-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-189-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-192-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-193-0x0000000002A90000-0x0000000002B32000-memory.dmp

Filesize
648KB

Download
memory/2772-196-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-199-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-202-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-205-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-209-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2772-212-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download