hxxps://cdn[.]discordapp[.]com/attachments/1231440804208312402/1231440887524098109/Krampus[.]exe?ex=6636f7b2&is=662482b2&hm=072248e040c57d6f50f4ca9d0edc0521a56014940da22fafd562acef7e2e9afd&

Resubmissions

21/04/2024, 03:24

240421-dx26csaa41 8

21/04/2024, 03:09

240421-dnskkahd76 8

Analysis

max time kernel
51s
max time network
50s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
21/04/2024, 03:09

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General

Target

https://cdn.discordapp.com/attachments/1231440804208312402/1231440887524098109/Krampus.exe?ex=6636f7b2&is=662482b2&hm=072248e040c57d6f50f4ca9d0edc0521a56014940da22fafd562acef7e2e9afd&

Score

8^/10

Malware Config

Signatures

Downloads MZ/PE file

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

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Downloads\Unconfirmed 206291.crdownload:SmartScreen	msedge.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1448	msedge.exe
1448	msedge.exe
2204	msedge.exe
2204	msedge.exe
2188	identity_helper.exe
2188	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe

Suspicious use of FindShellTrayWindow 34 IoCs

pid	Process
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe
2204	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 1460	2204	msedge.exe	84
PID 2204 wrote to memory of 1460	2204	msedge.exe	84
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 3080	2204	msedge.exe	85
PID 2204 wrote to memory of 1448	2204	msedge.exe	86
PID 2204 wrote to memory of 1448	2204	msedge.exe	86
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87
PID 2204 wrote to memory of 2812	2204	msedge.exe	87

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://cdn.discordapp.com/attachments/1231440804208312402/1231440887524098109/Krampus.exe?ex=6636f7b2&is=662482b2&hm=072248e040c57d6f50f4ca9d0edc0521a56014940da22fafd562acef7e2e9afd&
1⤵
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2204
- 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=0xfc,0x100,0x104,0xd8,0x108,0x7ff8a7be46f8,0x7ff8a7be4708,0x7ff8a7be4718
  2⤵
  PID:1460
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2088 /prefetch:2
  2⤵
  PID:3080
- 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=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2176 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1448
- 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=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2916 /prefetch:8
  2⤵
  PID:2812
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3372 /prefetch:1
  2⤵
  PID:2476
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3392 /prefetch:1
  2⤵
  PID:3608
- 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=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5188 /prefetch:8
  2⤵
  PID:3616
- 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=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5188 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2188
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4156 /prefetch:1
  2⤵
  PID:632
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5496 /prefetch:1
  2⤵
  PID:2016
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_collections.mojom.CollectionsDataManager --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --service-sandbox-type=collections --mojo-platform-channel-handle=3520 /prefetch:8
  2⤵
  PID:2900
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3976 /prefetch:1
  2⤵
  PID:4992
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=6224 /prefetch:8
  2⤵
  PID:3472
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6036 /prefetch:1
  2⤵
  PID:4608
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2052,10616349177051193918,14901904227848451206,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6020 /prefetch:1
  2⤵
  PID:3940

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

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4880

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
a9519bc058003dbea34765176083739e

SHA1
ef49b8790219eaddbdacb7fc97d3d05433b8575c

SHA256
e034683bc434a09f5d0293cb786e6a3943b902614f9211d42bed47759164d38b

SHA512
a1b67ccf313173c560ead25671c64de65e3e2599251926e33ce8399fde682fce5cb20f36ee330fcd8bb8f7a9c00ef432da56c9b02dfd7d3f02865f390c342b53

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
cb138796dbfb37877fcae3430bb1e2a7

SHA1
82bb82178c07530e42eca6caf3178d66527558bc

SHA256
50c55ba7baeebe1fa4573118edbca59010d659ea42761148618fb3af8a1c9bdd

SHA512
287471cccbe33e08015d6fc35e0bcdca0ec79bebc3a58f6a340b7747b5b2257b33651574bc83ed529aef2ba94be6e68968e59d2a8ef5f733dce9df6404ad7cc5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
6KB

MD5
fa3c926e2d9813feea8f6897aa74bd4b

SHA1
608d6ec7354363d83bfd4bd4ccfcf9974343ce1c

SHA256
358be147b3574192921f857cc01b8e60fab6278e291c5401ca061f28aede5e3d

SHA512
de96fc48667992fc81677b41c1080d2ad9d64900889d714c6999376ba7bbd15aa8391c40d7bb84fbc614af300290b80116c68b437050b2d62230d30835e1030e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
6KB

MD5
aaf0a71b8379f2bbeeec6a62cfa4260b

SHA1
cc65ac750525d5331f867da0c166e89845889f76

SHA256
45b37685848a694798ec96acb2f4fff2ac6261a43bd97c3bf5bbe661ba6847c4

SHA512
77d9025a5a46ec484f5e36fe048cac8bf7dfa90ab920817d6acddcba00abe91fa7c4d064972d93a6c51fa2943ceb87c245f57739e848c8c9eed0e7703eca5cf9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

Filesize
16B

MD5
6752a1d65b201c13b62ea44016eb221f

SHA1
58ecf154d01a62233ed7fb494ace3c3d4ffce08b

SHA256
0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

SHA512
9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

Filesize
11KB

MD5
b6f776ab5c1f80aedc149c6b1003ba88

SHA1
cd1912e3045e250b03aaf6b6bf676ec7bc25397b

SHA256
6b8e88e64f8320d2dac9e7145c08b57318bd6b33a490fbc84671f3828772a81d

SHA512
8db41026af1ffc4b78b01d5456c2e4d41e7f2c45e0d51470154205adb3a468b2bd34c9d2e0b99b2677ce7425bc8797a18f65b1617711d097c565f90904cbede1

Download Submit
C:\Users\Admin\Downloads\Unconfirmed 206291.crdownload

Filesize
6.0MB

MD5
2a871625ee598f088dfee42a8d46a5f8

SHA1
7bffb0122a7f97f834ba3137e4c60c5b72c87c55

SHA256
bcae0c27f2bfbe03c43e236b0f1ce3d6dcb6868fd2c74cec335316ea97b10ee1

SHA512
2b860ba408549b3a0ec839ec7d1f5b02a3896af51787ea1cc54c8ba304e5a6c52e0b8d75e1f1297e470701a4976e745b0008829b5658d90bf42ac91f2559cc9c

Download Submit