2ef69f36d3a99e423ae6b8de52168fd26656d0c274845270000b013043daac7e

Resubmissions

03/01/2023, 10:38

230103-mpdx8sbb55 6

03/01/2023, 10:33

230103-mlzersed4t 6

Analysis

max time kernel
1742s
max time network
1208s
platform
windows10-2004_x64
resource
win10v2004-20220812-es
resource tags

arch:x64arch:x86image:win10v2004-20220812-eslocale:es-esos:windows10-2004-x64systemwindows
submitted
03/01/2023, 10:38

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General

Target

MultiMC/MultiMC.exe
Size

8.6MB
MD5

86ec72e400abe379ed8453af49bbef32
SHA1

374abd6b7aa5687fc738ceee1df52be0994fd8bc
SHA256

10e44003255706995674e8dfdd43ce8242ee5f8402cafc8ec01e614d7c93dfa7
SHA512

846619daf0bce719aa8ce63962b5e68f498010a36608c842dd94f7235fa5ef36e35be77aba528169eb132f7971e4f6f6298b102cf49b0ed3a41e9dbbff98b4ae
SSDEEP

196608:jSFXkbPNSzhxpI+nIrTGEhiKhxJunHR/OcdpIX9uVvVV5cVY7VjVMSrV4rNVVjVJ:aXWWwwdiYVvVV5cVY7VjVMSrV4rNVVj7

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	msedge.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\1998baf8-09dd-4501-9441-9c45d69c07ee.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20230103113959.pma	setup.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	msedge.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2120	MultiMC.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2120	MultiMC.exe
2120	MultiMC.exe
612	msedge.exe
612	msedge.exe
4588	msedge.exe
4588	msedge.exe
1472	identity_helper.exe
1472	identity_helper.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2120	MultiMC.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 5 IoCs

pid	Process
4588	msedge.exe
4588	msedge.exe
4588	msedge.exe
4588	msedge.exe
4588	msedge.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	2944	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2944	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4588	msedge.exe
4588	msedge.exe
4588	msedge.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2120	MultiMC.exe
2120	MultiMC.exe
2120	MultiMC.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 1352	2120	MultiMC.exe	79
PID 2120 wrote to memory of 1352	2120	MultiMC.exe	79
PID 2120 wrote to memory of 988	2120	MultiMC.exe	80
PID 2120 wrote to memory of 988	2120	MultiMC.exe	80
PID 2120 wrote to memory of 3252	2120	MultiMC.exe	81
PID 2120 wrote to memory of 3252	2120	MultiMC.exe	81
PID 2120 wrote to memory of 4588	2120	MultiMC.exe	91
PID 2120 wrote to memory of 4588	2120	MultiMC.exe	91
PID 4588 wrote to memory of 4256	4588	msedge.exe	92
PID 4588 wrote to memory of 4256	4588	msedge.exe	92
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 364	4588	msedge.exe	95
PID 4588 wrote to memory of 612	4588	msedge.exe	96
PID 4588 wrote to memory of 612	4588	msedge.exe	96
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98
PID 4588 wrote to memory of 1044	4588	msedge.exe	98

C:\Users\Admin\AppData\Local\Temp\MultiMC\MultiMC.exe
"C:\Users\Admin\AppData\Local\Temp\MultiMC\MultiMC.exe"
1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe
  "C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -jar C:/Users/Admin/AppData/Local/Temp/MultiMC/jars/JavaCheck.jar
  2⤵
  PID:1352
- C:\Program Files\Java\jdk1.8.0_66\bin\javaw.exe
  "C:\Program Files\Java\jdk1.8.0_66\bin\javaw.exe" -jar C:/Users/Admin/AppData/Local/Temp/MultiMC/jars/JavaCheck.jar
  2⤵
  PID:988
- C:\ProgramData\Oracle\Java\javapath\javaw.exe
  javaw -jar C:/Users/Admin/AppData/Local/Temp/MultiMC/jars/JavaCheck.jar
  2⤵
  PID:3252
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://www.microsoft.com/link
  2⤵
  - Adds Run key to start application
  - Enumerates system info in registry
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4588
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ffe4c1546f8,0x7ffe4c154708,0x7ffe4c154718
    3⤵
    PID:4256
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2132 /prefetch:2
    3⤵
    PID:364
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --lang=es --service-sandbox-type=none --mojo-platform-channel-handle=2424 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:612
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --lang=es --service-sandbox-type=utility --mojo-platform-channel-handle=3244 /prefetch:8
    3⤵
    PID:1044
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --lang=es --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3816 /prefetch:1
    3⤵
    PID:4680
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --lang=es --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3820 /prefetch:1
    3⤵
    PID:540
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --lang=es --service-sandbox-type=service --mojo-platform-channel-handle=5092 /prefetch:8
    3⤵
    PID:3164
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --disable-gpu-compositing --lang=es --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5368 /prefetch:1
    3⤵
    PID:4828
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --lang=es --service-sandbox-type=service --mojo-platform-channel-handle=5552 /prefetch:8
    3⤵
    PID:1796
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --lang=es --service-sandbox-type=none --mojo-platform-channel-handle=5672 /prefetch:8
    3⤵
    PID:4292
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
    3⤵
    - Drops file in Program Files directory
    PID:2568
  - - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7ff717ab5460,0x7ff717ab5470,0x7ff717ab5480
      4⤵
      PID:1348
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --lang=es --service-sandbox-type=none --mojo-platform-channel-handle=5672 /prefetch:8
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1472
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --disable-gpu-compositing --lang=es --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5240 /prefetch:1
    3⤵
    PID:4912
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2080,923440622284103687,14378491617331030888,131072 --disable-gpu-compositing --lang=es --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5268 /prefetch:1
    3⤵
    PID:4904

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x3cc 0x2fc
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2944

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3140

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1352-177-0x0000000002EB0000-0x0000000003EB0000-memory.dmp

Filesize
16.0MB

Download
memory/1352-163-0x0000000002EB0000-0x0000000003EB0000-memory.dmp

Filesize
16.0MB

Download
memory/2120-145-0x0000000000400000-0x00000000009FB000-memory.dmp

Filesize
6.0MB

Download
memory/2120-143-0x0000000061740000-0x0000000061771000-memory.dmp

Filesize
196KB

Download
memory/2120-147-0x0000000061DC0000-0x0000000062404000-memory.dmp

Filesize
6.3MB

Download
memory/2120-148-0x0000000005420000-0x0000000005632000-memory.dmp

Filesize
2.1MB

Download
memory/2120-132-0x0000000001500000-0x0000000001A75000-memory.dmp

Filesize
5.5MB

Download
memory/2120-144-0x0000000063400000-0x0000000063415000-memory.dmp

Filesize
84KB

Download
memory/2120-134-0x0000000000C81000-0x0000000000C83000-memory.dmp

Filesize
8KB

Download
memory/2120-153-0x0000000006820000-0x0000000006831000-memory.dmp

Filesize
68KB

Download
memory/2120-135-0x0000000001500000-0x0000000001A75000-memory.dmp

Filesize
5.5MB

Download
memory/2120-142-0x0000000000400000-0x00000000009FB000-memory.dmp

Filesize
6.0MB

Download
memory/2120-168-0x0000000001500000-0x0000000001A75000-memory.dmp

Filesize
5.5MB

Download
memory/2120-169-0x0000000070940000-0x000000007095C000-memory.dmp

Filesize
112KB

Download
memory/2120-170-0x0000000068880000-0x0000000068DAF000-memory.dmp

Filesize
5.2MB

Download
memory/2120-171-0x0000000061740000-0x0000000061771000-memory.dmp

Filesize
196KB

Download
memory/2120-172-0x0000000063400000-0x0000000063415000-memory.dmp

Filesize
84KB

Download
memory/2120-173-0x0000000000400000-0x00000000009FB000-memory.dmp

Filesize
6.0MB

Download
memory/2120-174-0x000000006C8C0000-0x000000006C8FF000-memory.dmp

Filesize
252KB

Download
memory/2120-175-0x0000000061DC0000-0x0000000062404000-memory.dmp

Filesize
6.3MB

Download
memory/2120-176-0x0000000004A70000-0x0000000004A80000-memory.dmp

Filesize
64KB

Download
memory/2120-146-0x000000006C8C0000-0x000000006C8FF000-memory.dmp

Filesize
252KB

Download
memory/2120-178-0x0000000004A70000-0x0000000004A80000-memory.dmp

Filesize
64KB

Download
memory/2120-136-0x0000000070940000-0x000000007095C000-memory.dmp

Filesize
112KB

Download
memory/2120-137-0x0000000061740000-0x0000000061771000-memory.dmp

Filesize
196KB

Download
memory/2120-141-0x0000000070940000-0x000000007095C000-memory.dmp

Filesize
112KB

Download
memory/2120-140-0x0000000001500000-0x0000000001A75000-memory.dmp

Filesize
5.5MB

Download
memory/2120-139-0x000000006C8C0000-0x000000006C8FF000-memory.dmp

Filesize
252KB

Download
memory/2120-138-0x0000000068880000-0x0000000068DAF000-memory.dmp

Filesize
5.2MB

Download
memory/3252-159-0x0000000002E00000-0x0000000003E00000-memory.dmp

Filesize
16.0MB

Download