guloader | e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558

Analysis

max time kernel
136s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
07/06/2024, 02:57

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General

Target
e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe
Size 427KB
Sample240607-dfxjjsge7y
SHA256 e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558
MD5 736667e7dc440e5841a4b8e91f962998
SHA1 8db35b8be861540df59422eb979752b72379fa5b
SHA512 bc09edfa764fec004e4450c7208206a64f9fe01eb4a2158f7eba6c8a4c66a0c02e9143235a4ecbc1ed0cba3a4a8ad5d9a1ab64138ec145b36ebedb7e887ab0d5
SSDEEP 12288:yqAPWt4Lmt3ZClJfBIr5hT0D8qGBxhUeqJo:Set0D1+ulo
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

guloader downloader

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 2 IoCs

pid	Process
1492	e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe
1492	e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1492	e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\prevoyance.ini	e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

C:\Users\Admin\AppData\Local\Temp\e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe
"C:\Users\Admin\AppData\Local\Temp\e31553f33eca2d232994d2cc1056d1b8426c3e8d4c12aa12a93544b95793d558.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
PID:1492

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 --no-appcompat-clear --field-trial-handle=3148,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=4256 /prefetch:8
1⤵
PID:4548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nskEB0D.tmp\System.dll
Size 11KB
SHA256 b9631423a50c666faf2cc6901c5a8d6eb2fecd306fdd2524256b7e2e37b251c2
MD5 6ad39193ed20078aa1b23c33a1e48859
SHA1 95e70e4f47aa1689cc08afbdaef3ec323b5342fa
SHA512 78c89bb8c86f3b68e5314467eca4e8e922d143335081fa66b01d756303e1aec68ed01f4be7098dbe06a789ca32a0f31102f5ba408bc5ab28e61251611bb4f62b
SSDEEP 96:qIsUxO9udx4qYp7AJb76BykUbQMtHUOA5Iv+RnsrqeXV+d1g2IW9t2c+cEwF9Fug:ZVL7ikJb76BQUoUm+RnyXVYO2RvHFug
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1492-29-0x0000000005930000-0x0000000006FD2000-memory.dmp

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memory/1492-30-0x0000000077B61000-0x0000000077C81000-memory.dmp

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memory/1492-31-0x0000000005930000-0x0000000006FD2000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads