eaff8cd6cccffd5fe64c771a5bdcb21f99697f728ce554e9c594608e58731665

Analysis

max time kernel
133s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-10-2024 02:00

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General

Target

stage4.exe
Size

483KB
MD5

de43429789841ca9c3ea968c57a76b4e
SHA1

3b88e989e41c91df253865d1c9ab7354009a75d4
SHA256

eaff8cd6cccffd5fe64c771a5bdcb21f99697f728ce554e9c594608e58731665
SHA512

4b566e4f5a27271a78de5c00ebabc4f4f86da650834c14c18c64656d0cc1a553a68425616a2759791cc91cd86997b968288369b5be108409a322609524aa2dca
SSDEEP

12288:5TlrYw1RUh3NFn+N5WfIQIjbs/ZmnzT4:/pRUh3NDfIQIjeZ

Score

3^/10

discovery

Malware Config

Signatures

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stage4.exe

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

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4524	msedge.exe
4524	msedge.exe
4672	msedge.exe
4672	msedge.exe
2284	identity_helper.exe
2284	identity_helper.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4488	stage4.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

pid	Process
4672	msedge.exe
4672	msedge.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe
4672	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4488	stage4.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 1156	4672	msedge.exe	87
PID 4672 wrote to memory of 1156	4672	msedge.exe	87
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 708	4672	msedge.exe	88
PID 4672 wrote to memory of 4524	4672	msedge.exe	89
PID 4672 wrote to memory of 4524	4672	msedge.exe	89
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90
PID 4672 wrote to memory of 3472	4672	msedge.exe	90

C:\Users\Admin\AppData\Local\Temp\stage4.exe
"C:\Users\Admin\AppData\Local\Temp\stage4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:4488

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\RedoImport.mht
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4672
- 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,0x100,0x104,0xd8,0x108,0x7ffb6d6a46f8,0x7ffb6d6a4708,0x7ffb6d6a4718
  2⤵
  PID:1156
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2140,14131140636439020136,7926574809249989225,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2148 /prefetch:2
  2⤵
  PID:708
- 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=2140,14131140636439020136,7926574809249989225,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2208 /prefetch:3
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4524
- 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=2140,14131140636439020136,7926574809249989225,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2924 /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=2140,14131140636439020136,7926574809249989225,131072 --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=3288 /prefetch:1
  2⤵
  PID:2724
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2140,14131140636439020136,7926574809249989225,131072 --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=3300 /prefetch:1
  2⤵
  PID:1756
- 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=2140,14131140636439020136,7926574809249989225,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5236 /prefetch:8
  2⤵
  PID:408
- 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=2140,14131140636439020136,7926574809249989225,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5236 /prefetch:8
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2284

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3772

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
372B

MD5
e8b00c430ef7fc01c1f15d6f6ceff8d5

SHA1
930f082fcb4fe00ca81494d4482aad5a14352c33

SHA256
84298f8662342b4b1f130187b3c1183efba8647069060b79128e4179926ae645

SHA512
77a66bbd28e892e2a6b4be95736f4020fba5f88463b188c2197cefde255a82263306f7505f19924d7263558aeb1f64fa01e2a02987f9756530b2fde80acf326a

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

Filesize
152B

MD5
fab8d8d865e33fe195732aa7dcb91c30

SHA1
2637e832f38acc70af3e511f5eba80fbd7461f2c

SHA256
1b034ffe38e534e2b7a21be7c1f207ff84a1d5f3893207d0b4bb1a509b4185ea

SHA512
39a3d43ef7e28fea2cb247a5d09576a4904a43680db8c32139f22a03d80f6ede98708a2452f3f82232b868501340f79c0b3f810f597bcaf5267c3ccfb1704b43

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

Filesize
152B

MD5
36988ca14952e1848e81a959880ea217

SHA1
a0482ef725657760502c2d1a5abe0bb37aebaadb

SHA256
d7e96088b37cec1bde202ae8ec2d2f3c3aafc368b6ebd91b3e2985846facf2e6

SHA512
d04b2f5afec92eb3d9f9cdc148a3eddd1b615e0dfb270566a7969576f50881d1f8572bccb8b9fd7993724bdfe36fc7633a33381d43e0b96c4e9bbd53fc010173

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

Filesize
6KB

MD5
4dec522ab0c874eabf3fc58b3722dec2

SHA1
18f292b5489f374a8e7b3724c7575d3448f6fa32

SHA256
e79b9a262b60b68bbdd04bba1e48b7d102431d7ca2d1650afec1371d56db589c

SHA512
03574dd5978e4b5d7548e252d74e179225ea6760c784f21250ad0908782442a206494512db09ea608d116ce56e13a8b63f8bcb389f67d8d44fa905b100a21afa

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

Filesize
6KB

MD5
fd0f3f6973caada9e816cb1d7e0fb55f

SHA1
0260e0fedf46fe66e38bdfcd57c7877cc61c4bfe

SHA256
276635d5138f8cff7a95023a5f8c50256b754745bf3989ec6c143b94fce0844c

SHA512
4bd4cd349b42e4ce25269d9b84f5bf3a9b44380b7d6dec04716cc748d80a2f03f0fcf4d627d76babaaf37d218c5d94edeefe97d65b6c2ff7f044b60729bb04bc

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
10KB

MD5
0a4c3669cfae4bc9abf4f29d58e62fd7

SHA1
fba29fd5ce486d702cfcbea279f2787ed59da39f

SHA256
92a4e1fa04e985e348adbbc6bfbc622ed65af7369de26da44c179b95411792f8

SHA512
bcc6a490e65ba2a94e35d6211b030a0cbde281462253fd7406802d2d98b711dde880bb3469eec7f4d64dc1404a41c8a224dd24740f4ac69649820cc257dc353c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\ShaderCache\GPUCache\data_1

Filesize
264KB

MD5
f50f89a0a91564d0b8a211f8921aa7de

SHA1
112403a17dd69d5b9018b8cede023cb3b54eab7d

SHA256
b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec

SHA512
bf8cda48cf1ec4e73f0dd1d4fa5562af1836120214edb74957430cd3e4a2783e801fa3f4ed2afb375257caeed4abe958265237d6e0aacf35a9ede7a2e8898d58

Download Submit