e9b97a927e25832626d4b8476119733639c1349da154a7ba96ffa5ab20b309ca

Analysis

max time kernel
144s
max time network
132s
platform
windows7_x64
resource
win7-20231130-en
resource tags

arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
submitted
10/12/2023, 20:21

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General

Target

tuc3.exe
Size

6.9MB
MD5

5dc26d87f76b3a2a534035847a027f60
SHA1

6d0d1874f45df1f85ecf8a993a86d83f0325c926
SHA256

e9b97a927e25832626d4b8476119733639c1349da154a7ba96ffa5ab20b309ca
SHA512

a4f018e587d44a53f3af7d2e115f48b4a1baa29abe63cc006de64a79a67fd4ca757ee0b6298d9a1e9c232acae9a0bf38db9c8cd47c833d25b5f6a7ce0a7a9c27
SSDEEP

196608:UK2+nNevvWstwr2m5BmycyEbSfasepd5e4x6+AjZ6mjxzj:UDY6tiP3myRfzepXe4ny8gxzj

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
2740	tuc3.tmp
1928	crtgame.exe
1636	crtgame.exe

Loads dropped DLL 6 IoCs

pid	Process
2404	tuc3.exe
2740	tuc3.tmp
2740	tuc3.tmp
2740	tuc3.tmp
2740	tuc3.tmp
2740	tuc3.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	152.89.198.214

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-D4907.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-6RAIR.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-E03A5.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-CBUT0.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-C869K.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-1BQEU.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-NKIFN.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-VGLV3.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-D6VIC.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-ENAH2.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-ET1R5.tmp	tuc3.tmp
File opened for modification	C:\Program Files (x86)\CRTGame\crtgame.exe	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-C5GFV.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-2257N.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-26VVC.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-04I2J.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-APK6N.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-KCMLN.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-ALDL3.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-K0N78.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-7GQV4.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-8O2OH.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-V30I4.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-R5799.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-8JBTB.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-91SJI.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-817JB.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-CHI1T.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-HNFNG.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-N708M.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-0SH9L.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-AJSK9.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\is-MBJKK.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-MAE29.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-J1V5H.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-R4M5R.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-LK4EM.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-OPHGU.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-VO07M.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-U2CA9.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-B1V5M.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-9LHVN.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-MNMK0.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-3UGMF.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-HBQ43.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-P9O8K.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-FAD8C.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-BOG92.tmp	tuc3.tmp
File opened for modification	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\is-KEV67.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-T363F.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-7RLHP.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-KBFB4.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-34RM1.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-SM5KR.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-OTSKQ.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-ME55S.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-TP1QN.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\lessmsi\is-OTM5G.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-MQ2KI.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-T9MS3.tmp	tuc3.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-OC1TK.tmp	tuc3.tmp

Runs net.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2740	tuc3.tmp

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2740	2404	tuc3.exe	28
PID 2404 wrote to memory of 2740	2404	tuc3.exe	28
PID 2404 wrote to memory of 2740	2404	tuc3.exe	28
PID 2404 wrote to memory of 2740	2404	tuc3.exe	28
PID 2404 wrote to memory of 2740	2404	tuc3.exe	28
PID 2404 wrote to memory of 2740	2404	tuc3.exe	28
PID 2404 wrote to memory of 2740	2404	tuc3.exe	28
PID 2740 wrote to memory of 1580	2740	tuc3.tmp	29
PID 2740 wrote to memory of 1580	2740	tuc3.tmp	29
PID 2740 wrote to memory of 1580	2740	tuc3.tmp	29
PID 2740 wrote to memory of 1580	2740	tuc3.tmp	29
PID 2740 wrote to memory of 1928	2740	tuc3.tmp	30
PID 2740 wrote to memory of 1928	2740	tuc3.tmp	30
PID 2740 wrote to memory of 1928	2740	tuc3.tmp	30
PID 2740 wrote to memory of 1928	2740	tuc3.tmp	30
PID 2740 wrote to memory of 2760	2740	tuc3.tmp	35
PID 2740 wrote to memory of 2760	2740	tuc3.tmp	35
PID 2740 wrote to memory of 2760	2740	tuc3.tmp	35
PID 2740 wrote to memory of 2760	2740	tuc3.tmp	35
PID 2740 wrote to memory of 1636	2740	tuc3.tmp	33
PID 2740 wrote to memory of 1636	2740	tuc3.tmp	33
PID 2740 wrote to memory of 1636	2740	tuc3.tmp	33
PID 2740 wrote to memory of 1636	2740	tuc3.tmp	33
PID 2760 wrote to memory of 1464	2760	net.exe	34
PID 2760 wrote to memory of 1464	2760	net.exe	34
PID 2760 wrote to memory of 1464	2760	net.exe	34
PID 2760 wrote to memory of 1464	2760	net.exe	34

C:\Users\Admin\AppData\Local\Temp\tuc3.exe
"C:\Users\Admin\AppData\Local\Temp\tuc3.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Users\Admin\AppData\Local\Temp\is-DI2VH.tmp\tuc3.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-DI2VH.tmp\tuc3.tmp" /SL5="$50150,6991381,54272,C:\Users\Admin\AppData\Local\Temp\tuc3.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2740
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query
    3⤵
    PID:1580
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1928
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1636
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 10
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2760

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 helpmsg 10
1⤵
PID:1464

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
124KB

MD5
89b0a50b671cc3617a2da8193f23712c

SHA1
f9aa0540902b95868642c40218a4276fdf672f9f

SHA256
2663cf641e8e749f04ac4254773f01e4a494793df2f0dec0e4679598da6206bf

SHA512
e814963c7c87995bdbbd5771cfa17315123aed5ab1db944df01358d10dae0a3376a3dcbb64c4875fc0d91a818aee70f24a0b79e240f3fe1e82e99718b4f122c4

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

Filesize
124KB

MD5
a199d566a8cbcbfd2c375a56e91fd2b3

SHA1
bf37a2718bf557b6a6e8e4e4c02eed2f4df5823d

SHA256
2c307811008b07cfa49edec657e4421f92e738068796be88bf1383ca7821acc2

SHA512
87351d52ef02f63136d638b64cd79498e1660ef51a3f9b16f7a8c720344574f521c6da81815077b7da627b45c77ee7065eafe356b2921e5d9e95924de779020d

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

Filesize
21KB

MD5
41963c75a5854a1ac348141ca5ddac1d

SHA1
336ea82faff07acd50aa0ac1d69a00be599afb63

SHA256
f6e4beadcf27fe3a08072c13f948042d9ff61e049d3286dbc248d8c781b1e3b8

SHA512
2464488a2b38c80c384e876b97ed75c98741a2ed72b5c39a3512f365df85d231899976556d17681cc3a3fda767b71ff678b0ac4ee389ac73700ad1fec387487c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DI2VH.tmp\tuc3.tmp

Filesize
687KB

MD5
f448d7f4b76e5c9c3a4eaff16a8b9b73

SHA1
31808f1ffa84c954376975b7cdb0007e6b762488

SHA256
7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

SHA512
f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

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

Filesize
149KB

MD5
7108e5e5c111f54cb792615d289c6c93

SHA1
b8286ea7b67fe9fb51c6a15f4bfad76674c8877f

SHA256
9546e76fcba5e0ed8fc254b64304b9af88fc40c06d8c366b494347135c62b277

SHA512
78ad1c0ec58ae9f81f7aa9b3836387e02c2edc1ff4efed2786311313712b906eb2272ddf10356d4e7a286db657749ee86aaa96cd47096c7ce25bbc925de81bc3

Download Submit
\Users\Admin\AppData\Local\Temp\is-FV485.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-FV485.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
\Users\Admin\AppData\Local\Temp\is-FV485.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1636-187-0x00000000029F0000-0x0000000002A92000-memory.dmp

Filesize
648KB

Download
memory/1636-171-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-190-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-194-0x00000000029F0000-0x0000000002A92000-memory.dmp

Filesize
648KB

Download
memory/1636-213-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-184-0x00000000029F0000-0x0000000002A92000-memory.dmp

Filesize
648KB

Download
memory/1636-183-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-160-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-210-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-162-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-206-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-203-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-165-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-200-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-197-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-170-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-193-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-174-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-177-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1636-180-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1928-158-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1928-154-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1928-156-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/1928-153-0x0000000000400000-0x000000000061C000-memory.dmp

Filesize
2.1MB

Download
memory/2404-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2404-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2404-163-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2740-169-0x00000000037E0000-0x00000000039FC000-memory.dmp

Filesize
2.1MB

Download
memory/2740-166-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2740-164-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2740-152-0x00000000037E0000-0x00000000039FC000-memory.dmp

Filesize
2.1MB

Download
memory/2740-8-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download