hxxps://www[.]dropbox[.]com/l/AAAufSJg1udY-rmvSKUuVGrBC-OF74SJbug

Analysis

max time kernel
12s
max time network
16s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
19-09-2023 09:23

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General

Target

https://www.dropbox.com/l/AAAufSJg1udY-rmvSKUuVGrBC-OF74SJbug

Score

6^/10

Malware Config

Signatures

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-19\Software\Microsoft\Cryptography\TPM\Telemetry	chrome.exe
Set value (int)	\REGISTRY\USER\S-1-5-19\SOFTWARE\Microsoft\Cryptography\TPM\Telemetry\TraceTimeLast = "133395890211232778"	chrome.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-1045988481-1457812719-2617974652-1000\{79B334F9-2289-4F05-AC1A-2EE244ACDA44}	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4172	chrome.exe
4172	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs

pid	Process
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe
Token: SeShutdownPrivilege	4172	chrome.exe
Token: SeCreatePagefilePrivilege	4172	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe
4172	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4172 wrote to memory of 2424	4172	chrome.exe	50
PID 4172 wrote to memory of 2424	4172	chrome.exe	50
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2896	4172	chrome.exe	86
PID 4172 wrote to memory of 2104	4172	chrome.exe	88
PID 4172 wrote to memory of 2104	4172	chrome.exe	88
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87
PID 4172 wrote to memory of 3328	4172	chrome.exe	87

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://www.dropbox.com/l/AAAufSJg1udY-rmvSKUuVGrBC-OF74SJbug
1⤵
- Enumerates system info in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4172
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7fff066e9758,0x7fff066e9768,0x7fff066e9778
  2⤵
  PID:2424
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1624 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:2
  2⤵
  PID:2896
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2200 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:8
  2⤵
  PID:3328
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2136 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:8
  2⤵
  PID:2104
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3016 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:1
  2⤵
  PID:3528
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3024 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:1
  2⤵
  PID:4972
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=audio.mojom.AudioService --lang=en-US --service-sandbox-type=audio --mojo-platform-channel-handle=4776 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:8
  2⤵
  PID:3344
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=video_capture.mojom.VideoCaptureService --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=4784 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:8
  2⤵
  - Modifies registry class
  PID:2560
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --enable-chrome-cart --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --mojo-platform-channel-handle=5224 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:1
  2⤵
  PID:1228
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5808 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:8
  2⤵
  PID:4460
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5512 --field-trial-handle=1756,i,10680665300363399615,6375376855663389327,131072 /prefetch:8
  2⤵
  PID:3148

C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
1⤵
PID:5036

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

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity

Filesize
1KB

MD5
cecafa2ae3ed72a80c89e5552cdee036

SHA1
5ceff35fe8c15467576fba853fd97f74db74628f

SHA256
96841f0baaf83a39aca2718208603d788965fc4d91c66dfc159bae8b9ab51153

SHA512
6f791f8da98e9372c27a9a954b8e6ff62a9f48a1719428c2aace6ccaee0fd449087415c2e3051e767b4a7a5ed286e91aa6f082c97d5b88bacadb168482bc80d7

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C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences

Filesize
6KB

MD5
59ea3fcbc4e630a5d3f83937a453ea74

SHA1
c82842d1e0ee1fa7dff048ea6572b52650f4a603

SHA256
bc2c3f088cf341cc12f33b7b5f5ea45696658ee3646ee934eb84a0568c4ce6a1

SHA512
82cd15588da7dfa288ce7babb9cc55f2253dba8558e41abdb8d610983dadd434ff6ac15f4291708e4457f54fd804d9101a7a666a6e0d8dda659ad6404a14216d

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C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State

Filesize
102KB

MD5
8dc93e1cf362f1d7bef2f7249195b899

SHA1
f4f3e441935c72ff085bcb8f7eb5d31df87ea27d

SHA256
d2623c13c232f31b8d19a43cc6307047f91728b4fdd0b9b38882def23f71e307

SHA512
f225bc55f62d4a2d9a213a61de6e71a1511a726fb010622bdabfd37ffa43566b364b9ae314060b39c091629591a3849a86a6643fe3866500a9551e48836628a0

Download Submit
C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json

Filesize
2B

MD5
99914b932bd37a50b983c5e7c90ae93b

SHA1
bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

SHA256
44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

SHA512
27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

Download Submit