9c961eb89e4c8ca9c44651dbf635dff7b62adb03c8483fe26e3bcfd5598bb57e

Analysis

max time kernel
152s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2022, 01:38

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General

Target

9c961eb89e4c8ca9c44651dbf635dff7b62adb03c8483fe26e3bcfd5598bb57e.exe
Size

350KB
MD5

01fe1c04bcc2ca15d32bffa0158f9b20
SHA1

e6ad82b5e6bc08bcf328cb148d10da88ad0055f2
SHA256

9c961eb89e4c8ca9c44651dbf635dff7b62adb03c8483fe26e3bcfd5598bb57e
SHA512

a230cc17da8d7fc188a9af871390c9220d2d7924d2e9feb20d784b573fb84a7674984ce96d24975fe3f560ed481b00ff1a7307cec03aabe8c061cc9cd876df6d
SSDEEP

6144:s7Yn9jgZngovqAHaxOp6W6teumW+XGccIuZENT3rdp3N:skpgZ7vwxH/PmDXkIhp3

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
396	etjao.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-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run	etjao.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\{32C81FC9-556D-BCA0-B82C-F77E75D9ED7C} = "C:\\Users\\Admin\\AppData\\Roaming\\Niyfa\\etjao.exe"	etjao.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 372 set thread context of 1404	372	9c961eb89e4c8ca9c44651dbf635dff7b62adb03c8483fe26e3bcfd5598bb57e.exe	84

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe
396	etjao.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 372 wrote to memory of 396	372	9c961eb89e4c8ca9c44651dbf635dff7b62adb03c8483fe26e3bcfd5598bb57e.exe	83
PID 372 wrote to memory of 396	372	9c961eb89e4c8ca9c44651dbf635dff7b62adb03c8483fe26e3bcfd5598bb57e.exe	83
PID 372 wrote to memory of 396	372	9c961eb89e4c8ca9c44651dbf635dff7b62adb03c8483fe26e3bcfd5598bb57e.exe	83
PID 396 wrote to memory of 2312	396	etjao.exe	48
PID 396 wrote to memory of 2312	396	etjao.exe	48
PID 396 wrote to memory of 2312	396	etjao.exe	48
PID 396 wrote to memory of 2312	396	etjao.exe	48
PID 396 wrote to memory of 2312	396	etjao.exe	48
PID 396 wrote to memory of 2340	396	etjao.exe	47
PID 396 wrote to memory of 2340	396	etjao.exe	47
PID 396 wrote to memory of 2340	396	etjao.exe	47
PID 396 wrote to memory of 2340	396	etjao.exe	47
PID 396 wrote to memory of 2340	396	etjao.exe	47
PID 396 wrote to memory of 2396	396	etjao.exe	46
PID 396 wrote to memory of 2396	396	etjao.exe	46
PID 396 wrote to memory of 2396	396	etjao.exe	46
PID 396 wrote to memory of 2396	396	etjao.exe	46
PID 396 wrote to memory of 2396	396	etjao.exe	46
PID 396 wrote to memory of 3068	396	etjao.exe	37
PID 396 wrote to memory of 3068	396	etjao.exe	37
PID 396 wrote to memory of 3068	396	etjao.exe	37
PID 396 wrote to memory of 3068	396	etjao.exe	37
PID 396 wrote to memory of 3068	396	etjao.exe	37
PID 396 wrote to memory of 2632	396	etjao.exe	36
PID 396 wrote to memory of 2632	396	etjao.exe	36
PID 396 wrote to memory of 2632	396	etjao.exe	36
PID 396 wrote to memory of 2632	396	etjao.exe	36
PID 396 wrote to memory of 2632	396	etjao.exe	36
PID 396 wrote to memory of 3236	396	etjao.exe	35
PID 396 wrote to memory of 3236	396	etjao.exe	35
PID 396 wrote to memory of 3236	396	etjao.exe	35
PID 396 wrote to memory of 3236	396	etjao.exe	35
PID 396 wrote to memory of 3236	396	etjao.exe	35
PID 396 wrote to memory of 3328	396	etjao.exe	11
PID 396 wrote to memory of 3328	396	etjao.exe	11
PID 396 wrote to memory of 3328	396	etjao.exe	11
PID 396 wrote to memory of 3328	396	etjao.exe	11
PID 396 wrote to memory of 3328	396	etjao.exe	11
PID 396 wrote to memory of 3408	396	etjao.exe	10
PID 396 wrote to memory of 3408	396	etjao.exe	10
PID 396 wrote to memory of 3408	396	etjao.exe	10
PID 396 wrote to memory of 3408	396	etjao.exe	10
PID 396 wrote to memory of 3408	396	etjao.exe	10
PID 396 wrote to memory of 3496	396	etjao.exe	34
PID 396 wrote to memory of 3496	396	etjao.exe	34
PID 396 wrote to memory of 3496	396	etjao.exe	34
PID 396 wrote to memory of 3496	396	etjao.exe	34
PID 396 wrote to memory of 3496	396	etjao.exe	34
PID 396 wrote to memory of 3648	396	etjao.exe	33
PID 396 wrote to memory of 3648	396	etjao.exe	33
PID 396 wrote to memory of 3648	396	etjao.exe	33
PID 396 wrote to memory of 3648	396	etjao.exe	33
PID 396 wrote to memory of 3648	396	etjao.exe	33
PID 396 wrote to memory of 4716	396	etjao.exe	30
PID 396 wrote to memory of 4716	396	etjao.exe	30
PID 396 wrote to memory of 4716	396	etjao.exe	30
PID 396 wrote to memory of 4716	396	etjao.exe	30
PID 396 wrote to memory of 4716	396	etjao.exe	30
PID 396 wrote to memory of 2560	396	etjao.exe	13
PID 396 wrote to memory of 2560	396	etjao.exe	13
PID 396 wrote to memory of 2560	396	etjao.exe	13
PID 396 wrote to memory of 2560	396	etjao.exe	13
PID 396 wrote to memory of 2560	396	etjao.exe	13
PID 396 wrote to memory of 3088	396	etjao.exe	12

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3408

C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
1⤵
PID:3328

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:3088

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
1⤵
PID:2560

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:4716

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:3648

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:3496

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:3236

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
1⤵
PID:2632

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3068
- C:\Users\Admin\AppData\Local\Temp\9c961eb89e4c8ca9c44651dbf635dff7b62adb03c8483fe26e3bcfd5598bb57e.exe
  "C:\Users\Admin\AppData\Local\Temp\9c961eb89e4c8ca9c44651dbf635dff7b62adb03c8483fe26e3bcfd5598bb57e.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:372
- - C:\Users\Admin\AppData\Roaming\Niyfa\etjao.exe
    "C:\Users\Admin\AppData\Roaming\Niyfa\etjao.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:396
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpcd73b46b.bat"
    3⤵
    PID:1404

C:\Windows\system32\taskhostw.exe
taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
1⤵
PID:2396

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
1⤵
PID:2340

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2312

C:\Windows\System32\RuntimeBroker.exe
C:\Windows\System32\RuntimeBroker.exe -Embedding
1⤵
PID:1704

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:1108

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:516

C:\Windows\system32\backgroundTaskHost.exe
"C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
1⤵
PID:1528

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\tmpcd73b46b.bat

Filesize
307B

MD5
ef306505d555a697dbe6a8f66b674d21

SHA1
9a1d04b84671eca12cbfc9e8b36de46bc9f00b3c

SHA256
7dee401e29f416853a222da552bc10cd879a193510ed8096c9f31985c496dcdd

SHA512
7440def0be1b3c5e0a4ae90a6471931136628bd1dfe8ec789394e63a4efe5bedf6a196f0d31d3da012abc97b37443a8dc4f97f966e189488be863e743c8b8723

Download Submit
C:\Users\Admin\AppData\Roaming\Niyfa\etjao.exe

Filesize
350KB

MD5
9e8999fa5363302a86eb4a8df4baff46

SHA1
5319b8879f46c44d35f842fd9b382f4dd33651c1

SHA256
0e044882892fe4231ac6958792f9af5f5f3649bece6871522339016954629521

SHA512
5e424bbec4907b3c363920333efff327fbb464c531bdf0c61aaa1762cca02fdde3378d9b891de86b4e7778f4aec27d93e4a8b27bc881ed095505630d26ae73df

Download Submit
C:\Users\Admin\AppData\Roaming\Niyfa\etjao.exe

Filesize
350KB

MD5
9e8999fa5363302a86eb4a8df4baff46

SHA1
5319b8879f46c44d35f842fd9b382f4dd33651c1

SHA256
0e044882892fe4231ac6958792f9af5f5f3649bece6871522339016954629521

SHA512
5e424bbec4907b3c363920333efff327fbb464c531bdf0c61aaa1762cca02fdde3378d9b891de86b4e7778f4aec27d93e4a8b27bc881ed095505630d26ae73df

Download Submit
memory/372-147-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/372-145-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/372-138-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/372-137-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/372-142-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/372-143-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/372-144-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/372-151-0x00000000022B0000-0x00000000022F7000-memory.dmp

Filesize
284KB

Download
memory/372-146-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/372-136-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/372-150-0x0000000000400000-0x0000000000447000-memory.dmp

Filesize
284KB

Download
memory/372-135-0x00000000021C0000-0x0000000002207000-memory.dmp

Filesize
284KB

Download
memory/396-163-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/396-162-0x0000000000400000-0x000000000045B000-memory.dmp

Filesize
364KB

Download
memory/396-161-0x0000000001F50000-0x0000000001F97000-memory.dmp

Filesize
284KB

Download
memory/1404-149-0x0000000001360000-0x00000000013A7000-memory.dmp

Filesize
284KB

Download
memory/1404-156-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1404-155-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1404-157-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1404-158-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1404-154-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1404-160-0x0000000001360000-0x00000000013A7000-memory.dmp

Filesize
284KB

Download
memory/1404-153-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1404-152-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download