e933a36f504731dcbfa5ec020c3ed54a7606dd8cf62246bc34f91a2545f95ab3

Analysis

max time kernel
153s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2022 09:43

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General

Target

e933a36f504731dcbfa5ec020c3ed54a7606dd8cf62246bc34f91a2545f95ab3.exe
Size

333KB
MD5

0d618d4200080848e2018bd8af4e2d70
SHA1

347dab9387e4d5dc6306b5a5fe7a72b84dcff36e
SHA256

e933a36f504731dcbfa5ec020c3ed54a7606dd8cf62246bc34f91a2545f95ab3
SHA512

87f4fb2e18df2a94fd511f538f1fa0ff5475fd6e44d0144045204a55c22fe17c87a6e232c73b39620cb992eecdfd922185458d041a194376bd2f0cf39fa63c67
SSDEEP

6144:5sOXev74zue74KwdTueIr6SLFdVB43K7H9DSbqLtFF3bJnznBnOniy:50te8luvzZdMeAgddzBOiy

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2856	irux.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-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\Currentversion\Run	irux.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\{176762F4-556D-BCA0-3AE4-8903F7119301} = "C:\\Users\\Admin\\AppData\\Roaming\\Koevji\\irux.exe"	irux.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3252 set thread context of 4968	3252	e933a36f504731dcbfa5ec020c3ed54a7606dd8cf62246bc34f91a2545f95ab3.exe	84

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe
2856	irux.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 2856	3252	e933a36f504731dcbfa5ec020c3ed54a7606dd8cf62246bc34f91a2545f95ab3.exe	83
PID 3252 wrote to memory of 2856	3252	e933a36f504731dcbfa5ec020c3ed54a7606dd8cf62246bc34f91a2545f95ab3.exe	83
PID 3252 wrote to memory of 2856	3252	e933a36f504731dcbfa5ec020c3ed54a7606dd8cf62246bc34f91a2545f95ab3.exe	83
PID 2856 wrote to memory of 2848	2856	irux.exe	44
PID 2856 wrote to memory of 2848	2856	irux.exe	44
PID 2856 wrote to memory of 2848	2856	irux.exe	44
PID 2856 wrote to memory of 2848	2856	irux.exe	44
PID 2856 wrote to memory of 2848	2856	irux.exe	44
PID 2856 wrote to memory of 2868	2856	irux.exe	48
PID 2856 wrote to memory of 2868	2856	irux.exe	48
PID 2856 wrote to memory of 2868	2856	irux.exe	48
PID 2856 wrote to memory of 2868	2856	irux.exe	48
PID 2856 wrote to memory of 2868	2856	irux.exe	48
PID 2856 wrote to memory of 2972	2856	irux.exe	47
PID 2856 wrote to memory of 2972	2856	irux.exe	47
PID 2856 wrote to memory of 2972	2856	irux.exe	47
PID 2856 wrote to memory of 2972	2856	irux.exe	47
PID 2856 wrote to memory of 2972	2856	irux.exe	47
PID 2856 wrote to memory of 744	2856	irux.exe	46
PID 2856 wrote to memory of 744	2856	irux.exe	46
PID 2856 wrote to memory of 744	2856	irux.exe	46
PID 2856 wrote to memory of 744	2856	irux.exe	46
PID 2856 wrote to memory of 744	2856	irux.exe	46
PID 2856 wrote to memory of 3088	2856	irux.exe	49
PID 2856 wrote to memory of 3088	2856	irux.exe	49
PID 2856 wrote to memory of 3088	2856	irux.exe	49
PID 2856 wrote to memory of 3088	2856	irux.exe	49
PID 2856 wrote to memory of 3088	2856	irux.exe	49
PID 2856 wrote to memory of 3292	2856	irux.exe	56
PID 2856 wrote to memory of 3292	2856	irux.exe	56
PID 2856 wrote to memory of 3292	2856	irux.exe	56
PID 2856 wrote to memory of 3292	2856	irux.exe	56
PID 2856 wrote to memory of 3292	2856	irux.exe	56
PID 2856 wrote to memory of 3396	2856	irux.exe	54
PID 2856 wrote to memory of 3396	2856	irux.exe	54
PID 2856 wrote to memory of 3396	2856	irux.exe	54
PID 2856 wrote to memory of 3396	2856	irux.exe	54
PID 2856 wrote to memory of 3396	2856	irux.exe	54
PID 2856 wrote to memory of 3460	2856	irux.exe	50
PID 2856 wrote to memory of 3460	2856	irux.exe	50
PID 2856 wrote to memory of 3460	2856	irux.exe	50
PID 2856 wrote to memory of 3460	2856	irux.exe	50
PID 2856 wrote to memory of 3460	2856	irux.exe	50
PID 2856 wrote to memory of 3548	2856	irux.exe	53
PID 2856 wrote to memory of 3548	2856	irux.exe	53
PID 2856 wrote to memory of 3548	2856	irux.exe	53
PID 2856 wrote to memory of 3548	2856	irux.exe	53
PID 2856 wrote to memory of 3548	2856	irux.exe	53
PID 2856 wrote to memory of 3768	2856	irux.exe	52
PID 2856 wrote to memory of 3768	2856	irux.exe	52
PID 2856 wrote to memory of 3768	2856	irux.exe	52
PID 2856 wrote to memory of 3768	2856	irux.exe	52
PID 2856 wrote to memory of 3768	2856	irux.exe	52
PID 2856 wrote to memory of 4764	2856	irux.exe	57
PID 2856 wrote to memory of 4764	2856	irux.exe	57
PID 2856 wrote to memory of 4764	2856	irux.exe	57
PID 2856 wrote to memory of 4764	2856	irux.exe	57
PID 2856 wrote to memory of 4764	2856	irux.exe	57
PID 2856 wrote to memory of 3840	2856	irux.exe	71
PID 2856 wrote to memory of 3840	2856	irux.exe	71
PID 2856 wrote to memory of 3840	2856	irux.exe	71
PID 2856 wrote to memory of 3840	2856	irux.exe	71
PID 2856 wrote to memory of 3840	2856	irux.exe	71
PID 2856 wrote to memory of 3252	2856	irux.exe	82

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2848

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:744
- C:\Users\Admin\AppData\Local\Temp\e933a36f504731dcbfa5ec020c3ed54a7606dd8cf62246bc34f91a2545f95ab3.exe
  "C:\Users\Admin\AppData\Local\Temp\e933a36f504731dcbfa5ec020c3ed54a7606dd8cf62246bc34f91a2545f95ab3.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3252
- - C:\Users\Admin\AppData\Roaming\Koevji\irux.exe
    "C:\Users\Admin\AppData\Roaming\Koevji\irux.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2856
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp4180d4f2.bat"
    3⤵
    PID:4968

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2972

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2868

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:3088

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3460

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3768

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:3548

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3396

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3292

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4764

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
1⤵
PID:3840

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\tmp4180d4f2.bat

Filesize
307B

MD5
a4ee32d042a94f925d279ed26036b6de

SHA1
486e45cea735ab3e29395e313551ac1174fe8af0

SHA256
b16f2ad991c6f7fc809dc6358345f552128b3ceb00b26a479c9a3e5836eaed93

SHA512
08099438abac149a5135bd72e88edf2a120b450a33a92e6c5b79b4ab27b5d1816b9ab1de119452e1ea8882dbbf5a0d9e7e242e6bab844a4b125d272b2fa7fcf3

Download Submit
C:\Users\Admin\AppData\Roaming\Koevji\irux.exe

Filesize
333KB

MD5
9db6cc51c093e533cde9bbf564921489

SHA1
d6c55d29bfeed5ba55f6e2a2a91ffa13f6d1a303

SHA256
60a28940074f6241a8401c7e70223499e232cea4956a131546f539670eaef2cf

SHA512
2e04bba99cead48cab68ff614b409344b3151a9dc24eaf1cb3947df5a0e9a3e780ec02a357bb09fb1c289f32a39236e6cc3ee7de386573a1feafa6375576c7d1

Download Submit
C:\Users\Admin\AppData\Roaming\Koevji\irux.exe

Filesize
333KB

MD5
9db6cc51c093e533cde9bbf564921489

SHA1
d6c55d29bfeed5ba55f6e2a2a91ffa13f6d1a303

SHA256
60a28940074f6241a8401c7e70223499e232cea4956a131546f539670eaef2cf

SHA512
2e04bba99cead48cab68ff614b409344b3151a9dc24eaf1cb3947df5a0e9a3e780ec02a357bb09fb1c289f32a39236e6cc3ee7de386573a1feafa6375576c7d1

Download Submit
memory/2856-158-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2856-148-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/2856-146-0x0000000000510000-0x0000000000556000-memory.dmp

Filesize
280KB

Download
memory/3252-140-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/3252-139-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/3252-141-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/3252-143-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/3252-142-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/3252-132-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3252-135-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/3252-147-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/3252-149-0x0000000002330000-0x0000000002376000-memory.dmp

Filesize
280KB

Download
memory/3252-134-0x0000000002240000-0x0000000002286000-memory.dmp

Filesize
280KB

Download
memory/3252-133-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4968-151-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/4968-152-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/4968-153-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/4968-154-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/4968-155-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/4968-150-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/4968-157-0x00000000005A0000-0x00000000005E6000-memory.dmp

Filesize
280KB

Download
memory/4968-145-0x00000000005A0000-0x00000000005E6000-memory.dmp

Filesize
280KB

Download