c450e8d78cc73b5d131aee45ed4c1d09f208c184171657628509dbffb4a343f3

Analysis

max time kernel
145s
max time network
146s
platform
windows7_x64
resource
win7-20231130-en
resource tags

arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
submitted
10/12/2023, 18:40

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General

Target

tuc5.exe
Size

6.9MB
MD5

f0edb413b950ceee200182b5a2ad742b
SHA1

d75a29d5d805e8b9e2ba9ef9107d692bcaa675a3
SHA256

c450e8d78cc73b5d131aee45ed4c1d09f208c184171657628509dbffb4a343f3
SHA512

7ced2b1ab8754460ed9ee2597c80087695ee868c134214243a82c510566cf6eb94197a46c19368e7cd444ab7e533a0e00b01b80c771716c30fae8473cd775f78
SSDEEP

196608:BxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:XNztzQlcDPXus98d9Jzj

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
2896	tuc5.tmp
2328	crtgame.exe
2704	crtgame.exe

Loads dropped DLL 6 IoCs

pid	Process
2380	tuc5.exe
2896	tuc5.tmp
2896	tuc5.tmp
2896	tuc5.tmp
2896	tuc5.tmp
2896	tuc5.tmp

Unexpected DNS network traffic destination 2 IoCs

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

description	ioc
Destination IP	194.49.94.194
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-76RUM.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-53KLQ.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-58CO6.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-FT5HE.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-89ILR.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-ACNAR.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-IVIMR.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-PVUHR.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-T8PO2.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-0L09H.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-LVOOP.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-1I3VQ.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-SPMSB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\is-UK9D9.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\is-BKEIE.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-FHPC3.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-G2PJQ.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-7A0GR.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-RDVL4.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-K70SB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-OI9R2.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-L0GUJ.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-NOAIO.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-AR4EB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-LGUE9.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-KVMC9.tmp	tuc5.tmp
File opened for modification	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	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-JM12K.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-BE1LL.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-1E2RF.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-4P7TU.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-LLCGV.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\lessmsi\is-CMOEG.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-ICF89.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-SACB6.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-TL12H.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-3R0M7.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\plugins\internal\is-HQJFS.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-L16EB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-8ANOI.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-VNBI0.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-QUDD8.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-0214T.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\uninstall\unins000.dat	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-80D0N.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-TRVE6.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-3TM7C.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-0NAOK.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-B0S6P.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-D4CEB.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-EEE0T.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-OM07M.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-QNHR1.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-0V4VF.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-E7NL9.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-EGVRT.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-DSDMD.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\stuff\is-UL0HI.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-TEHM7.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-5NLPQ.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-CK021.tmp	tuc5.tmp
File created	C:\Program Files (x86)\CRTGame\bin\x86\is-P7GAS.tmp	tuc5.tmp

Runs net.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2896	tuc5.tmp

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2896	2380	tuc5.exe	28
PID 2380 wrote to memory of 2896	2380	tuc5.exe	28
PID 2380 wrote to memory of 2896	2380	tuc5.exe	28
PID 2380 wrote to memory of 2896	2380	tuc5.exe	28
PID 2380 wrote to memory of 2896	2380	tuc5.exe	28
PID 2380 wrote to memory of 2896	2380	tuc5.exe	28
PID 2380 wrote to memory of 2896	2380	tuc5.exe	28
PID 2896 wrote to memory of 1900	2896	tuc5.tmp	29
PID 2896 wrote to memory of 1900	2896	tuc5.tmp	29
PID 2896 wrote to memory of 1900	2896	tuc5.tmp	29
PID 2896 wrote to memory of 1900	2896	tuc5.tmp	29
PID 2896 wrote to memory of 2328	2896	tuc5.tmp	31
PID 2896 wrote to memory of 2328	2896	tuc5.tmp	31
PID 2896 wrote to memory of 2328	2896	tuc5.tmp	31
PID 2896 wrote to memory of 2328	2896	tuc5.tmp	31
PID 2896 wrote to memory of 2680	2896	tuc5.tmp	35
PID 2896 wrote to memory of 2680	2896	tuc5.tmp	35
PID 2896 wrote to memory of 2680	2896	tuc5.tmp	35
PID 2896 wrote to memory of 2680	2896	tuc5.tmp	35
PID 2896 wrote to memory of 2704	2896	tuc5.tmp	32
PID 2896 wrote to memory of 2704	2896	tuc5.tmp	32
PID 2896 wrote to memory of 2704	2896	tuc5.tmp	32
PID 2896 wrote to memory of 2704	2896	tuc5.tmp	32
PID 2680 wrote to memory of 1196	2680	net.exe	34
PID 2680 wrote to memory of 1196	2680	net.exe	34
PID 2680 wrote to memory of 1196	2680	net.exe	34
PID 2680 wrote to memory of 1196	2680	net.exe	34

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:2380
- C:\Users\Admin\AppData\Local\Temp\is-8E855.tmp\tuc5.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-8E855.tmp\tuc5.tmp" /SL5="$30142,7025884,54272,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:2896
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query
    3⤵
    PID:1900
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2328
- - C:\Program Files (x86)\CRTGame\crtgame.exe
    "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2704
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 10
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2680

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 helpmsg 10
1⤵
PID:1196

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
742KB

MD5
19eef783ea93aff06f270d2a16730a6f

SHA1
ef2ff47ad62e61c189c55849f5c3f0e9e94fb407

SHA256
c292e6b1b5fb8c6bba1a8dd923455557a68aa46ce2d780041052ea263a94c1ea

SHA512
fe0f176122b7dd3d4772be4789a64491fdadf2260f10bb3242c1ead077dadc918f86879f79883d90c57d319b1fb3d241289bcec92028912a6a460c75d01ca297

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

Filesize
180KB

MD5
78be80e359d4ac30498310770f332f75

SHA1
e3d971127c32bec7af332cdcb99f480733247dd0

SHA256
62ea25b8c30d2f707ceb37701cdba6a7f66e5eedbc20fd08547d76297bdf923c

SHA512
f2cedb91673278062c9ec0d897612516c4117c2778b115f6476bc986ce65ce3f5acd223953290453e5458c9688a93936813b837946bef6d84ed1ad837cc1f641

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

Filesize
22KB

MD5
d776f2071b55491e99075cdb8ca1813c

SHA1
c36e14eac605af3d1eeb5fe63a9740ab4b40968d

SHA256
a98574d518c468da509c2880e17f3ac09f73829f7c1874d7684ba9df223fe9d1

SHA512
ebe89a8ee8b7328e54df41e4d05d2dc84949593ca43604057a909686d06414bcbb5aedb42babbfbcf90663f1a52ee2792da533b9f769f72a44147fc70567b77a

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

Filesize
790KB

MD5
c186ab1c4abbcb9b9feee6e623b20afc

SHA1
372fa5b79656f3783781dece852ac3037c1daeb1

SHA256
6eef667ddda3a1f307872d407ea66caa55604ce8f63c5aa0c662acdf415077ed

SHA512
dea6258a7e5405e89c555e95119cba991085d45e012b92245992072e9ce5938a62b9c2acda0261162831b53b1c3969d60ffb2930ddb0cd501f22bf842eaaf3a0

Download Submit
\Users\Admin\AppData\Local\Temp\is-0U73A.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-0U73A.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
\Users\Admin\AppData\Local\Temp\is-0U73A.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-8E855.tmp\tuc5.tmp

Filesize
687KB

MD5
f448d7f4b76e5c9c3a4eaff16a8b9b73

SHA1
31808f1ffa84c954376975b7cdb0007e6b762488

SHA256
7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

SHA512
f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

Download Submit
memory/2328-158-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2328-153-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2328-157-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2328-154-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2380-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2380-163-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2380-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2704-165-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-183-0x0000000002AE0000-0x0000000002B82000-memory.dmp

Filesize
648KB

Download
memory/2704-162-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-213-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-211-0x0000000002AE0000-0x0000000002B82000-memory.dmp

Filesize
648KB

Download
memory/2704-210-0x0000000002AE0000-0x0000000002B82000-memory.dmp

Filesize
648KB

Download
memory/2704-207-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-169-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-170-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-173-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-176-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-179-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-182-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-160-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-188-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-191-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-192-0x0000000002AE0000-0x0000000002B82000-memory.dmp

Filesize
648KB

Download
memory/2704-195-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-198-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-201-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2704-204-0x0000000000400000-0x000000000061E000-memory.dmp

Filesize
2.1MB

Download
memory/2896-166-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2896-15-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2896-152-0x00000000037E0000-0x00000000039FE000-memory.dmp

Filesize
2.1MB

Download
memory/2896-164-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download