86b970f6bfcb0f742c3f24a12060ce18008f826c7651a9f3cc5a61112ef43f9a

Analysis

max time kernel
600s
max time network
602s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26-10-2022 23:31

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General

Target

34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe
Size

64KB
MD5

ad92cec45f06a752313a90cda5745c8f
SHA1

a5b23fe8d08154e27e3d86dcec9363429cae6000
SHA256

86b970f6bfcb0f742c3f24a12060ce18008f826c7651a9f3cc5a61112ef43f9a
SHA512

093841b20069ab3e0aab8137104db42a2833af1b457df5c70a5e5e9bc222abd8beb0a038c0ebb8c6df01c4a4aa3e845f09f00928472d05c59ebcefde5ae00920
SSDEEP

1536:/w28qww+saqRhGQruxKHEuj9zsZ6a4sHhN:SwNNGwHRBsZ6UBN

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4392	KB00885376.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run	34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KB00885376.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\KB00885376.exe\""	34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe
4392	KB00885376.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4392	KB00885376.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4240 wrote to memory of 4392	4240	34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe	81
PID 4240 wrote to memory of 4392	4240	34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe	81
PID 4240 wrote to memory of 4392	4240	34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe	81
PID 4240 wrote to memory of 2896	4240	34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe	82
PID 4240 wrote to memory of 2896	4240	34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe	82
PID 4240 wrote to memory of 2896	4240	34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe	82
PID 4392 wrote to memory of 2872	4392	KB00885376.exe	22
PID 4392 wrote to memory of 2872	4392	KB00885376.exe	22
PID 4392 wrote to memory of 2872	4392	KB00885376.exe	22
PID 4392 wrote to memory of 2872	4392	KB00885376.exe	22
PID 4392 wrote to memory of 2872	4392	KB00885376.exe	22
PID 4392 wrote to memory of 2920	4392	KB00885376.exe	21
PID 4392 wrote to memory of 2920	4392	KB00885376.exe	21
PID 4392 wrote to memory of 2920	4392	KB00885376.exe	21
PID 4392 wrote to memory of 2920	4392	KB00885376.exe	21
PID 4392 wrote to memory of 2920	4392	KB00885376.exe	21
PID 4392 wrote to memory of 2960	4392	KB00885376.exe	20
PID 4392 wrote to memory of 2960	4392	KB00885376.exe	20
PID 4392 wrote to memory of 2960	4392	KB00885376.exe	20
PID 4392 wrote to memory of 2960	4392	KB00885376.exe	20
PID 4392 wrote to memory of 2960	4392	KB00885376.exe	20
PID 4392 wrote to memory of 2492	4392	KB00885376.exe	19
PID 4392 wrote to memory of 2492	4392	KB00885376.exe	19
PID 4392 wrote to memory of 2492	4392	KB00885376.exe	19
PID 4392 wrote to memory of 2492	4392	KB00885376.exe	19
PID 4392 wrote to memory of 2492	4392	KB00885376.exe	19
PID 4392 wrote to memory of 3104	4392	KB00885376.exe	18
PID 4392 wrote to memory of 3104	4392	KB00885376.exe	18
PID 4392 wrote to memory of 3104	4392	KB00885376.exe	18
PID 4392 wrote to memory of 3104	4392	KB00885376.exe	18
PID 4392 wrote to memory of 3104	4392	KB00885376.exe	18
PID 4392 wrote to memory of 3304	4392	KB00885376.exe	17
PID 4392 wrote to memory of 3304	4392	KB00885376.exe	17
PID 4392 wrote to memory of 3304	4392	KB00885376.exe	17
PID 4392 wrote to memory of 3304	4392	KB00885376.exe	17
PID 4392 wrote to memory of 3304	4392	KB00885376.exe	17
PID 4392 wrote to memory of 3404	4392	KB00885376.exe	16
PID 4392 wrote to memory of 3404	4392	KB00885376.exe	16
PID 4392 wrote to memory of 3404	4392	KB00885376.exe	16
PID 4392 wrote to memory of 3404	4392	KB00885376.exe	16
PID 4392 wrote to memory of 3404	4392	KB00885376.exe	16
PID 4392 wrote to memory of 3476	4392	KB00885376.exe	15
PID 4392 wrote to memory of 3476	4392	KB00885376.exe	15
PID 4392 wrote to memory of 3476	4392	KB00885376.exe	15
PID 4392 wrote to memory of 3476	4392	KB00885376.exe	15
PID 4392 wrote to memory of 3476	4392	KB00885376.exe	15
PID 4392 wrote to memory of 3568	4392	KB00885376.exe	49
PID 4392 wrote to memory of 3568	4392	KB00885376.exe	49
PID 4392 wrote to memory of 3568	4392	KB00885376.exe	49
PID 4392 wrote to memory of 3568	4392	KB00885376.exe	49
PID 4392 wrote to memory of 3568	4392	KB00885376.exe	49
PID 4392 wrote to memory of 3820	4392	KB00885376.exe	48
PID 4392 wrote to memory of 3820	4392	KB00885376.exe	48
PID 4392 wrote to memory of 3820	4392	KB00885376.exe	48
PID 4392 wrote to memory of 3820	4392	KB00885376.exe	48
PID 4392 wrote to memory of 3820	4392	KB00885376.exe	48
PID 4392 wrote to memory of 4692	4392	KB00885376.exe	45
PID 4392 wrote to memory of 4692	4392	KB00885376.exe	45
PID 4392 wrote to memory of 4692	4392	KB00885376.exe	45
PID 4392 wrote to memory of 4692	4392	KB00885376.exe	45
PID 4392 wrote to memory of 4692	4392	KB00885376.exe	45
PID 4392 wrote to memory of 4316	4392	KB00885376.exe	30
PID 4392 wrote to memory of 4316	4392	KB00885376.exe	30
PID 4392 wrote to memory of 4316	4392	KB00885376.exe	30

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3476

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3404

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3304

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2492
- C:\Users\Admin\AppData\Local\Temp\34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe
  "C:\Users\Admin\AppData\Local\Temp\34fdf62757b385491ff69eb3cc2d541a6a15ac6fec01d34eb06abc8435bd2516_unpacked.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:4240
- - C:\Users\Admin\AppData\Roaming\KB00885376.exe
    "C:\Users\Admin\AppData\Roaming\KB00885376.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4392
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\POS643D.tmp.BAT"
    3⤵
    PID:2896

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2960

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2920

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2872

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:4316

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4692

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3820

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:3568

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:1568

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\POS643D.tmp.BAT

Filesize
340B

MD5
1538e7d31d6b5e09035cc347bb5b331b

SHA1
ff2e091fab23194374ed6af225cf61e5ce658c9c

SHA256
b073bbe35bcdddbaf1b3b71b69358cacdd89fe4a6c32e7f1843a617e54811209

SHA512
651eedf6a47b99c244615a6645e3959d8df902c924aea7586df35c9661f8147c9b597be83aa3ad8128de69ccb08ad375d9d97927ad6e51c984cece2c9bde620d

Download Submit
C:\Users\Admin\AppData\Roaming\KB00885376.exe

Filesize
64KB

MD5
ad92cec45f06a752313a90cda5745c8f

SHA1
a5b23fe8d08154e27e3d86dcec9363429cae6000

SHA256
86b970f6bfcb0f742c3f24a12060ce18008f826c7651a9f3cc5a61112ef43f9a

SHA512
093841b20069ab3e0aab8137104db42a2833af1b457df5c70a5e5e9bc222abd8beb0a038c0ebb8c6df01c4a4aa3e845f09f00928472d05c59ebcefde5ae00920

Download Submit
C:\Users\Admin\AppData\Roaming\KB00885376.exe

Filesize
64KB

MD5
ad92cec45f06a752313a90cda5745c8f

SHA1
a5b23fe8d08154e27e3d86dcec9363429cae6000

SHA256
86b970f6bfcb0f742c3f24a12060ce18008f826c7651a9f3cc5a61112ef43f9a

SHA512
093841b20069ab3e0aab8137104db42a2833af1b457df5c70a5e5e9bc222abd8beb0a038c0ebb8c6df01c4a4aa3e845f09f00928472d05c59ebcefde5ae00920

Download Submit
memory/1568-188-0x000000000C6B0000-0x000000000C6D1000-memory.dmp

Filesize
132KB

Download
memory/2492-152-0x0000000002EA0000-0x0000000002EC1000-memory.dmp

Filesize
132KB

Download
memory/2872-139-0x000000000F150000-0x000000000F171000-memory.dmp

Filesize
132KB

Download
memory/2896-135-0x0000000000000000-mapping.dmp

Download
memory/2920-143-0x000000003A8E0000-0x000000003A901000-memory.dmp

Filesize
132KB

Download
memory/2960-148-0x000000001A430000-0x000000001A451000-memory.dmp

Filesize
132KB

Download
memory/3104-156-0x00000000205A0000-0x00000000205C1000-memory.dmp

Filesize
132KB

Download
memory/3304-160-0x000000003F4A0000-0x000000003F4C1000-memory.dmp

Filesize
132KB

Download
memory/3404-164-0x00000000346F0000-0x0000000034711000-memory.dmp

Filesize
132KB

Download
memory/3476-168-0x0000000017BD0000-0x0000000017BF1000-memory.dmp

Filesize
132KB

Download
memory/3568-172-0x000000003C2D0000-0x000000003C2F1000-memory.dmp

Filesize
132KB

Download
memory/3820-176-0x0000000008D70000-0x0000000008D91000-memory.dmp

Filesize
132KB

Download
memory/4316-184-0x0000000024C10000-0x0000000024C31000-memory.dmp

Filesize
132KB

Download
memory/4392-132-0x0000000000000000-mapping.dmp

Download
memory/4392-192-0x0000000003560000-0x0000000003581000-memory.dmp

Filesize
132KB

Download
memory/4692-180-0x0000000024BC0000-0x0000000024BE1000-memory.dmp

Filesize
132KB

Download