MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e8d60980b64d84062055d1f13c2b018d3b786061baac52fcf5b025a33ecd4fb2. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GuLoader


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e8d60980b64d84062055d1f13c2b018d3b786061baac52fcf5b025a33ecd4fb2
SHA3-384 hash: cb86866f28bec7b14ccf7575157f314d7492962d70ba9daa3cca442e3b026b279f9e40d89c155cf1af079be0e6c47060
SHA1 hash: 5a8711ae79b63c535e189c39924fe8bc6a84e78e
MD5 hash: 9ff8529e7afe7b737b29a73a0f1e0e8b
humanhash: solar-solar-wyoming-sodium
File name:Hjernerystelsers.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:493'664 bytes
First seen:2023-05-25 07:21:39 UTC
Last seen:2023-05-25 07:36:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 4f67aeda01a0484282e8c59006b0b352 (51 x GuLoader, 9 x RemcosRAT, 9 x VIPKeylogger)
ssdeep 6144:U1on2qz+QA2bfTAdXvvlJgVTaFQF8xbsGelfCSgs4CI5kib2yH6GvypzR11B:8oz+QA2/AVliWnxbsG11sW5kiyyz6pb
Threatray 759 similar samples on MalwareBazaar
TLSH T11DA4BD2039A6ED22C90644BACB6F85F9ABA1BF02FC51CB5333197F2E76721F411925D1
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter lowmal3
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-06-09T01:08:49Z
Valid to:2025-06-08T01:08:49Z
Serial number: 5d52a416c7b37602a6a6e45e24643292a513cb51
Thumbprint Algorithm:SHA256
Thumbprint: 5ade1249d9141434fa25a5db7461ba67f9a441e819696f58c8dbe2c4536291c5
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
248
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Hjernerystelsers.exe
Verdict:
Suspicious activity
Analysis date:
2023-05-25 07:28:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a9fe47a7-4864-4b80-9d15-7275b29e9c03

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/391409/
Detection(s):
SecuriteInfo.com.Adware.Generic12.HOD.14374.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Delayed reading of the file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/87805/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
buer lolbin overlay packed remcos shell32.dll
Link:
https://www.filescan.io/uploads/646f0c9be3a9e80a32bf3542/reports/2bff7622-b8bf-44d4-bd67-6fa472a62339/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/e8d60980b64d84062055d1f13c2b018d3b786061baac52fcf5b025a33ecd4fb2
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/3720d1d4-cf88-4782-a04c-8b5e60adefc1
Result
Threat name:
GuLoader, Remcos
Create hunting rule
Detection:
malicious
Classification:
troj.evad.phis.spyw
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1242885
Signature
Contains functionality to modify clipboard data
Detected unpacking (changes PE section rights)
Installs a global keyboard hook
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: Remcos
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Instant Messenger accounts or passwords
Tries to steal Mail credentials (via file / registry access)
Yara detected GuLoader
Yara detected WebBrowserPassView password recovery tool
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 875893 Sample: Hjernerystelsers.exe Startdate: 26/05/2023 Architecture: WINDOWS Score: 100 33 geoplugin.net 2->33 49 Snort IDS alert for network traffic 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected GuLoader 2->53 55 3 other signatures 2->55 8 Hjernerystelsers.exe 3 37 2->8         started        signatures3 process4 file5 27 C:\Users\user\AppData\Local\...\System.dll, PE32 8->27 dropped 29 C:\Users\user\AppData\Local\...\csv.dll, PE32+ 8->29 dropped 57 Detected unpacking (changes PE section rights) 8->57 59 Contains functionality to modify clipboard data 8->59 61 Tries to detect Any.run 8->61 12 Hjernerystelsers.exe 3 18 8->12         started        signatures6 process7 dnsIp8 37 212.192.219.58, 49729, 80 KUBANNETRU Russian Federation 12->37 39 geoplugin.net 178.237.33.50, 49731, 49751, 49762 ATOM86-ASATOM86NL Netherlands 12->39 41 192.3.223.132, 2404, 49730, 49734 AS-COLOCROSSINGUS United States 12->41 31 C:\ProgramData\remcos\logs.dat, data 12->31 dropped 63 Tries to detect Any.run 12->63 65 Maps a DLL or memory area into another process 12->65 67 Sample uses process hollowing technique 12->67 69 Installs a global keyboard hook 12->69 17 Hjernerystelsers.exe 1 12->17         started        20 Hjernerystelsers.exe 1 12->20         started        22 Hjernerystelsers.exe 1 12->22         started        24 22 other processes 12->24 file9 signatures10 process11 dnsIp12 43 Tries to steal Instant Messenger accounts or passwords 17->43 45 Tries to steal Mail credentials (via file / registry access) 17->45 35 192.168.11.1 unknown unknown 24->35 47 Tries to harvest and steal browser information (history, passwords, etc) 24->47 signatures13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e8d60980b64d84062055d1f13c2b018d3b786061baac52fcf5b025a33ecd4fb2/
Threat name:
Win32.Trojan.Guloader
Create hunting rule
Status:
Malicious
First seen:
2023-05-24 09:36:45 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5dlatafwjwcamicv2hytykybru5xqydbxkwff7hvwas2gpwnj6za._file
Verdict:
malicious
Label(s):
remcos
Create hunting rule
cloudeye
Create hunting rule
Similar samples:
47e8a43a5dfcefe4d6850764bb413ffeab6724be3a37620853b686c9fb23db34
GuLoader
629156764548d3bdbc062de11f6ad819bb0d7d166aac339b04674861df522206
GuLoader
723ff97e6559f6558c288ca693898592a21aab28c003883ca13b81667d7e3aef
GuLoader
7d6e9247de0527fa4c0939c4f6e6726a35cb5f39492a7aeab5614ac1ab29b294
GuLoader
86cdb06b975dfb24d11bf83bbe33b39b8eb49c1bb514c2d508c05ef3d9b3be01
GuLoader
c627b8bb6c4ea0cf03aa2d209d0ecc53ff9784283328dabd44c1675aef0939c2
GuLoader
d03b9ead3cfc79c7495986f26b97dbe24b0558314a4993f595c80f8817295c48
GuLoader
dc5da53a5e93a588335b6561258d1540ac7d696c633d03de92e72d8e53254234
GuLoader
f3b8bf70686bcddcd2e2a6c1abae4de80f03bfa98b8087763ef3bf5276d1cc90
GuLoader
+ 749 additional samples on MalwareBazaar
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:guloader family:remcos botnet:remotehost downloader rat
Link:
https://tria.ge/reports/230525-h68fysha8z/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
192.3.223.132:2404
Unpacked files
SH256 hash:
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
MD5 hash:
3f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1 hash:
fe582246792774c2c9dd15639ffa0aca90d6fd0b
Link:
https://www.unpac.me/results/3cef21e8-0d9f-4d07-b298-b6cdcfdc3f18/
SH256 hash:
e8d60980b64d84062055d1f13c2b018d3b786061baac52fcf5b025a33ecd4fb2
MD5 hash:
9ff8529e7afe7b737b29a73a0f1e0e8b
SHA1 hash:
5a8711ae79b63c535e189c39924fe8bc6a84e78e
Link:
https://www.unpac.me/results/3cef21e8-0d9f-4d07-b298-b6cdcfdc3f18/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e8d60980b64d/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Ins_NSIS_Buer_Nov_2020_1
Create hunting rule
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

GuLoader

Executable exe e8d60980b64d84062055d1f13c2b018d3b786061baac52fcf5b025a33ecd4fb2

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/391409/

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