hxxps://mail[.]263[.]net/wm2e/mail/mailOperate/mailOperateAction_mailInnerFileDownloadImg[.]do?mailCodeType=img&emailIdentity=0063313e080d532b@0050@c0519c612d172612&folderId=1&usr=sales79@a-handler[.]com&sid=N3MzYTNsNWU3czc3NTk1QDFh&innercid=_Foxmail[.]1@aa82c7bd-fc73-9a21-f254-c22767152e67

Analysis

max time kernel
23s
max time network
19s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
31/03/2023, 07:38

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General

Target

https://mail.263.net/wm2e/mail/mailOperate/mailOperateAction_mailInnerFileDownloadImg.do?mailCodeType=img&emailIdentity=0063313e080d532b@0050@c0519c612d172612&folderId=1&[email protected]&sid=N3MzYTNsNWU3czc3NTk1QDFh&innercid=_Foxmail.1@aa82c7bd-fc73-9a21-f254-c22767152e67

Score

1^/10

Malware Config

Signatures

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 = "133247291309455746"	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4016	chrome.exe
4016	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs

pid	Process
4016	chrome.exe
4016	chrome.exe

Suspicious use of AdjustPrivilegeToken 42 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe
Token: SeShutdownPrivilege	4016	chrome.exe
Token: SeCreatePagefilePrivilege	4016	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe
4016	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4016 wrote to memory of 536	4016	chrome.exe	83
PID 4016 wrote to memory of 536	4016	chrome.exe	83
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 4012	4016	chrome.exe	85
PID 4016 wrote to memory of 1052	4016	chrome.exe	86
PID 4016 wrote to memory of 1052	4016	chrome.exe	86
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87
PID 4016 wrote to memory of 1404	4016	chrome.exe	87

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe" "--simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT'" https://mail.263.net/wm2e/mail/mailOperate/mailOperateAction_mailInnerFileDownloadImg.do?mailCodeType=img&emailIdentity=0063313e080d532b@0050@c0519c612d172612&folderId=1&[email protected]&sid=N3MzYTNsNWU3czc3NTk1QDFh&innercid=_Foxmail.1@aa82c7bd-fc73-9a21-f254-c22767152e67
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:4016
- 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,0x100,0x104,0xd8,0x108,0x7ffb735f9758,0x7ffb735f9768,0x7ffb735f9778
  2⤵
  PID:536
- 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=1796 --field-trial-handle=1812,i,8683803808662538365,11185154859127391944,131072 /prefetch:2
  2⤵
  PID:4012
- 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=2172 --field-trial-handle=1812,i,8683803808662538365,11185154859127391944,131072 /prefetch:8
  2⤵
  PID:1052
- 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=1792 --field-trial-handle=1812,i,8683803808662538365,11185154859127391944,131072 /prefetch:8
  2⤵
  PID:1404
- 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=2 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=3168 --field-trial-handle=1812,i,8683803808662538365,11185154859127391944,131072 /prefetch:1
  2⤵
  PID:3888
- 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=2 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=3192 --field-trial-handle=1812,i,8683803808662538365,11185154859127391944,131072 /prefetch:1
  2⤵
  PID:5008
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4780 --field-trial-handle=1812,i,8683803808662538365,11185154859127391944,131072 /prefetch:8
  2⤵
  PID:1292
- 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=4916 --field-trial-handle=1812,i,8683803808662538365,11185154859127391944,131072 /prefetch:8
  2⤵
  PID:1892
- 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=4816 --field-trial-handle=1812,i,8683803808662538365,11185154859127391944,131072 /prefetch:8
  2⤵
  PID:4204

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:4952

Network

MITRE ATT&CK Enterprise v6

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\Google\Chrome\User Data\Default\Preferences

Filesize
6KB

MD5
6caa27f9b49342e398cf0ddf8e2d8262

SHA1
9af8d55c4a21062e58f1a89e50f24507b3e26569

SHA256
382435a6c43ad8d47535283b88cc0c69cb840baaa79986e0824fded6e33012fd

SHA512
67d8964e5e9f5c667c6ac83c783725295bfcdfdfeacba5750ffaf4e9dffede440cdde1386126cad3782d764550f72363c7e6e90f4f18f8fed193e8fd5d15dc69

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

Filesize
15KB

MD5
7a42518f9401af57abf6a05a8296d131

SHA1
75817c54f292befc3d80bf5a6858a115bf5ebfa8

SHA256
807c228f541ed856044dd23d388b7a3d7ad7d7536a617471af49d6fa26602f98

SHA512
a3ea3b7aebd1e2899017825433e2729e74c2b37ebfa65a450ecbea7a7a77e78ac1c66f2f2be31032c2f240b55a0c79169be7dd36004cf80fecf35d5f3b5f2b12

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

Filesize
173KB

MD5
0afa31597c1a4b249c39d4d1875f351c

SHA1
44691e847d51a24908d79a7e69a92b249eb7a640

SHA256
e21de85e771deeb34e7c989b8218c1c29980eb43d0653a5a3694b1004de553ab

SHA512
5d38fb965728bc32125a60509cfdcf35f330af42044d711a6c96cec39daa8b5beca94fc490a62114c68242c4ef8e1177f9a4b44f6bcede88990c8c80a7039575

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