MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 25f9cee4db59dd499e9c4088926393e28f8bf51cbba8451c71d95af069189385. 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: 13
| SHA256 hash: | 25f9cee4db59dd499e9c4088926393e28f8bf51cbba8451c71d95af069189385 |
|---|---|
| SHA3-384 hash: | f5961036372683d31dffe9776bf8786eda279cac8d7110f1e637e2524ddab68bd2da7268b2d0897b55cb642d82b80aa5 |
| SHA1 hash: | e7c9be75dd3a9ae277d5430a5cfe50d8a349d135 |
| MD5 hash: | 68468b41313616b5a223f7c92ba39299 |
| humanhash: | timing-florida-oregon-ink |
| File name: | purchase order.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 491'832 bytes |
| First seen: | 2023-04-25 06:35:18 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 17b7d61bda0f7478e36d9ce3d4170680 (23 x GuLoader, 7 x AgentTesla, 6 x njrat) |
| ssdeep | 6144:ViucV6QopW68OkVaXTKOmSbYYMQc+oOo+M22WNVDs7/3H7qRzd+nXFALH3P8L+9M:Viu7/mP0YYMthrr7/H7qxd+neB9a9YG |
| Threatray | 586 similar samples on MalwareBazaar |
| TLSH | T1BFA4010B7FC830F7C959893A1572471AAF72B52947025B5B31D8E32EECB11D29E1E389 |
| 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) |
| File icon (PE): |  |
| dhash icon | 70f4d8c8b8b2d8b1 (1 x GuLoader) |
| Reporter |  lowmal3 |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2022-06-04T06:33:39Z |
| Valid to: | 2025-06-03T06:33:39Z |
| Serial number: | 21d7e21143b2b2b437f25bd73221140e7aee0012 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 103f9cc100050287c8981989a66a119aa7f6316323dad4bdb9658e1dbd088d58 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
257
Origin country :
DEVendor Threat Intelligence
Malware family:
guloader
ID:
1
File name:
purchase order.exe
Verdict:
Malicious activity
Analysis date:
2023-04-25 06:39:04 UTC
Tags:
guloader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Searching for the window
Delayed reading of the file
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Verdict:
Malicious
Labled as:
Win/grayware_confidence_70%
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
Result
Threat name:
GuLoader, Remcos
Detection:
malicious
Classification:
troj.evad.spyw
Score:
92 / 100
Signature
Antivirus / Scanner detection for submitted sample
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Multi AV Scanner detection for submitted file
Sample is not signed and drops a device driver
Sigma detected: Remcos
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-04-25 01:43:46 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
12 of 36 (33.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
remcos
cloudeye
Similar samples:
+ 576 additional samples on MalwareBazaar
Result
Malware family:
remcos
Score:
10/10
Tags:
family:guloader family:remcos botnet:remotehost downloader rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
Remcos
Malware Config
C2 Extraction:
193.25.214.194:2404
Unpacked files
SH256 hash:
852047023ba0cae91c7a43365878613cfb4e64e36ff98c460e113d5088d68ef5
MD5 hash:
be2621a78a13a56cf09e00dd98488360
SHA1 hash:
75f0539dc6af200a07cdb056cddddec595c6cfd2
SH256 hash:
25f9cee4db59dd499e9c4088926393e28f8bf51cbba8451c71d95af069189385
MD5 hash:
68468b41313616b5a223f7c92ba39299
SHA1 hash:
e7c9be75dd3a9ae277d5430a5cfe50d8a349d135
Malware family:
Remcos
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | PE_Potentially_Signed_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | QbotStuff |
|---|---|
| Author: | anonymous |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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