30178e750e73839e5c1d60aeecab63d1c1d9059da0be19c7745f28ba06f35869

Analysis

max time kernel
876s
max time network
867s
platform
windows11-21h2_x64
resource
win11-20250207-en
resource tags

arch:x64arch:x86image:win11-20250207-enlocale:en-usos:windows11-21h2-x64system
submitted
09/02/2025, 15:25

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General

Target

windows/loaders/dos.dll
Size

39KB
MD5

2c64fadc5893f9f730ef36ee2552702d
SHA1

ed435f79cbca422fb016512a497e5cdad9b803b1
SHA256

e40cf852b5219562b6e7b1ca998d23edb6bbef0e838ab33a75b1bd5136b908df
SHA512

1cf545880fb0f0e31c044db2903d8e8a6f7224f518fca2f63bb5438f8455bd7ac1d483a03f37b9213c720daa228a61d82f7bbd21c8d7bf4f91fefa9a1946f323
SSDEEP

768:r1viY6Uh3ggYOnUmGQ/oBw9z5XEchlnKCQ4:BKYVFggemZtz5XE1CQ

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 5 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	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wermgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
5644	MicrosoftEdgeUpdate.exe
5840	MicrosoftEdgeUpdate.exe
6072	MicrosoftEdgeUpdate.exe

Checks processor information in registry 2 TTPs 7 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Platform Specific Field 1	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Update Revision	wermgr.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	wermgr.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	wermgr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	wermgr.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
228	MicrosoftEdgeUpdate.exe
228	MicrosoftEdgeUpdate.exe
228	MicrosoftEdgeUpdate.exe
228	MicrosoftEdgeUpdate.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	228	MicrosoftEdgeUpdate.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\windows\loaders\dos.dll,#1
1⤵
PID:5728

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PG9lbSBwcm9kdWN0X21hbnVmYWN0dXJlcj0iIiBwcm9kdWN0X25hbWU9IiIvPjxleHAgZXRhZz0iJnF1b3Q7RSt4YkF6Nlk2c1UxMjg5YlM2cWw0VlJMYmtqZkJVR1RNSnNqckhyNDRpST0mcXVvdDsiLz48YXBwIGFwcGlkPSJ7OEE2OUQzNDUtRDU2NC00NjNjLUFGRjEtQTY5RDlFNTMwRjk2fSIgdmVyc2lvbj0iMTIzLjAuNjMxMi4xMjMiIG5leHR2ZXJzaW9uPSIiIGxhbmc9ImVuIiBicmFuZD0iR0dMUyIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjEiIGluc3RhbGxkYXRldGltZT0iMTczODk1NTAyNyIgb29iZV9pbnN0YWxsX3RpbWU9IjEzMzgzNDI3NjIxMTgwMDAwMCI-PGV2ZW50IGV2ZW50dHlwZT0iMzEiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjIxNzk4NjIiIHN5c3RlbV91cHRpbWVfdGlja3M9IjU1MTAyMjQ5MTEiLz48L2FwcD48L3JlcXVlc3Q-
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:5644

C:\Windows\SysWOW64\wermgr.exe
"C:\Windows\system32\wermgr.exe" "-outproc" "0" "4588" "1056" "1204" "1060" "0" "0" "0" "0" "0" "0" "0" "0"
1⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
PID:1536

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7QjM4QTg2NTktMUU4RS00RjNGLUE0MTAtNTRFMzlFOUUzMDE2fSIgdXNlcmlkPSJ7OTkzMjYzOTAtMTYxNy00N0Q3LTlFRjQtQjVCOEZCQjQ0QTE1fSIgaW5zdGFsbHNvdXJjZT0ic2NoZWR1bGVyIiByZXF1ZXN0aWQ9IntCRkIxQTdCNy01RTM2LTRDNzAtODE0RC1FNzhBQkM0MEFERTR9IiBkZWR1cD0iY3IiIGRvbWFpbmpvaW5lZD0iMCI-PGh3IGxvZ2ljYWxfY3B1cz0iMiIgcGh5c21lbW9yeT0iNCIgZGlza190eXBlPSIyIiBzc2U9IjEiIHNzZTI9IjEiIHNzZTM9IjEiIHNzc2UzPSIxIiBzc2U0MT0iMSIgc3NlNDI9IjEiIGF2eD0iMSIvPjxvcyBwbGF0Zm9ybT0id2luIiB2ZXJzaW9uPSIxMC4wLjIyMDAwLjQ5MyIgc3A9IiIgYXJjaD0ieDY0IiBwcm9kdWN0X3R5cGU9IjQ4IiBpc193aXA9IjAiIGlzX2luX2xvY2tkb3duX21vZGU9IjAiLz48b2VtIHByb2R1Y3RfbWFudWZhY3R1cmVyPSIiIHByb2R1Y3RfbmFtZT0iIi8-PGV4cCBldGFnPSImcXVvdDtWUFFvUDFGK2ZxMTV3UnpoMWtQTDRQTXBXaDhPUk1CNWl6dnJPQy9jaGpRPSZxdW90OyIvPjxhcHAgYXBwaWQ9Ins1NkVCMThGOC1CMDA4LTRDQkQtQjZEMi04Qzk3RkU3RTkwNjJ9IiB2ZXJzaW9uPSIxMzIuMC4yOTU3LjE0MCIgbmV4dHZlcnNpb249IiIgbGFuZz0iIiBicmFuZD0iSU5CWCIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjEiIGluc3RhbGxkYXRldGltZT0iMTczODk1NDU0OSI-PGV2ZW50IGV2ZW50dHlwZT0iMzIiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjQiIHN5c3RlbV91cHRpbWVfdGlja3M9IjU1MzE5NDM4OTYiLz48L2FwcD48L3JlcXVlc3Q-
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:5840

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7QjM4QTg2NTktMUU4RS00RjNGLUE0MTAtNTRFMzlFOUUzMDE2fSIgdXNlcmlkPSJ7OTkzMjYzOTAtMTYxNy00N0Q3LTlFRjQtQjVCOEZCQjQ0QTE1fSIgaW5zdGFsbHNvdXJjZT0ic2NoZWR1bGVyIiByZXF1ZXN0aWQ9Ins2RUIzQTA0Ny0zMzlCLTRDQjgtOTQ0OC0wRUNCQkMyMjkxODJ9IiBkZWR1cD0iY3IiIGRvbWFpbmpvaW5lZD0iMCI-PGh3IGxvZ2ljYWxfY3B1cz0iMiIgcGh5c21lbW9yeT0iNCIgZGlza190eXBlPSIyIiBzc2U9IjEiIHNzZTI9IjEiIHNzZTM9IjEiIHNzc2UzPSIxIiBzc2U0MT0iMSIgc3NlNDI9IjEiIGF2eD0iMSIvPjxvcyBwbGF0Zm9ybT0id2luIiB2ZXJzaW9uPSIxMC4wLjIyMDAwLjQ5MyIgc3A9IiIgYXJjaD0ieDY0IiBwcm9kdWN0X3R5cGU9IjQ4IiBpc193aXA9IjAiIGlzX2luX2xvY2tkb3duX21vZGU9IjAiLz48b2VtIHByb2R1Y3RfbWFudWZhY3R1cmVyPSIiIHByb2R1Y3RfbmFtZT0iIi8-PGV4cCBldGFnPSImcXVvdDtWUFFvUDFGK2ZxMTV3UnpoMWtQTDRQTXBXaDhPUk1CNWl6dnJPQy9jaGpRPSZxdW90OyIvPjxhcHAgYXBwaWQ9IntGM0M0RkUwMC1FRkQ1LTQwM0ItOTU2OS0zOThBMjBGMUJBNEF9IiB2ZXJzaW9uPSIxLjMuMTk1LjQzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSIiIGJyYW5kPSJJTkJYIiBjbGllbnQ9IiIgaW5zdGFsbGFnZT0iMSIgY29ob3J0PSJycmZAMC40OCI-PHVwZGF0ZWNoZWNrLz48cGluZyByPSIyIiByZD0iNjYxMiIgcGluZ19mcmVzaG5lc3M9IntENTQ1NTQwOC0yQTMxLTQ4NjgtODE1My0zQjRDRDBDMzcxMDZ9Ii8-PC9hcHA-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-PHBpbmcgcj0iMiIgcmQ9IjY2MTIiIHBpbmdfZnJlc2huZXNzPSJ7NDYxMTFDMUMtMDc4Mi00NkI2LUJEQkItQkU2OUVCRTk0MjI4fSIvPjwvYXBwPjwvcmVxdWVzdD4
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:6072

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --always-read-main-dll --field-trial-handle=3816,i,812062913372518910,10869345044244848604,262144 --variations-seed-version --mojo-platform-channel-handle=3856 /prefetch:14
1⤵
PID:5368

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ua /installsource scheduler
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:228

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --always-read-main-dll --field-trial-handle=4068,i,812062913372518910,10869345044244848604,262144 --variations-seed-version --mojo-platform-channel-handle=3968 /prefetch:14
1⤵
PID:2800

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --always-read-main-dll --field-trial-handle=4500,i,812062913372518910,10869345044244848604,262144 --variations-seed-version --mojo-platform-channel-handle=3792 /prefetch:14
1⤵
PID:4936

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --always-read-main-dll --field-trial-handle=5268,i,812062913372518910,10869345044244848604,262144 --variations-seed-version --mojo-platform-channel-handle=5156 /prefetch:14
1⤵
PID:5440

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --always-read-main-dll --field-trial-handle=5472,i,812062913372518910,10869345044244848604,262144 --variations-seed-version --mojo-platform-channel-handle=5144 /prefetch:14
1⤵
PID:4944

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --lang=en-US --service-sandbox-type=service --string-annotations --always-read-main-dll --field-trial-handle=4032,i,812062913372518910,10869345044244848604,262144 --variations-seed-version --mojo-platform-channel-handle=5492 /prefetch:14
1⤵
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=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --string-annotations --always-read-main-dll --field-trial-handle=4816,i,812062913372518910,10869345044244848604,262144 --variations-seed-version --mojo-platform-channel-handle=2948 /prefetch:14
1⤵
PID:5780

C:\Windows\system32\WerFault.exe
"C:\Windows\system32\WerFault.exe" -k -lc PDCRevocation PDCRevocation-20250209-1546.dmp
1⤵
PID:3556

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

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\Microsoft\EdgeUpdate\Log\MicrosoftEdgeUpdate.log

Filesize
406KB

MD5
366583ac04036c021bceb086c89dcce9

SHA1
08d66877d6801b6ab8b0685e5d5431fc4cb216e3

SHA256
12c2cabff4bff7f08547d4c122b0873845dd133a377ff64162ddc31b7195cc41

SHA512
80a53cb9d50c68cc7330fdcf4e23bdf6a0130add072db1bd130de9d11ed0ca43bd7451127c2ccd9c72283f4378b2f5ae51282a9886cedeb493c88922e3065979

Download Submit
C:\ProgramData\Microsoft\EdgeUpdate\Log\MicrosoftEdgeUpdate.log

Filesize
419KB

MD5
794f66b8363254116adc8d6579495f66

SHA1
9a6a148f9f9bb94d37575b9671c5cbc5cf8c3f19

SHA256
e8e970e9fcd5bfa2988a162e8da457b5aa2463406393ee04c967de8a2fd71fd4

SHA512
00134413e19d73c752706ae23efc861aa690613a8fa89cc80d6d819e7759cacf64c84b1b172949149d0df677e0f6d64d697527a554eb7f27c720d07f3ac48eab

Download Submit
C:\ProgramData\Microsoft\EdgeUpdate\Log\MicrosoftEdgeUpdate.log

Filesize
381KB

MD5
d59d4ddb9125c0ff7f036be8a1856fc4

SHA1
85a8a5204e5e30a9bc04cb05b5a46e7869781992

SHA256
070bac0252d1e1d299d18f484d769d6f1f25d6ef63537e63fabad72f977ec6a1

SHA512
63c1b4f4d75d80ae04df2f388819c954eeab15b820043a9421030a12e2e57b3499d60c95fbb96357566c44850de208573ccc254aa0ac0302245d45287513efa3

Download Submit