MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b1d80d80dfb9794c72e6c3a71aacf04fb353ba48c244488f4712f5cc20d5f831. 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
NanoCore
Vendor detections: 10
| SHA256 hash: | b1d80d80dfb9794c72e6c3a71aacf04fb353ba48c244488f4712f5cc20d5f831 |
|---|---|
| SHA3-384 hash: | 33b2caf5c511447ca6b8303090817bd304636b80df26e315623780887f4cc86388292eb7fd7d81c5088f409694508f20 |
| SHA1 hash: | 5246cfa28c335912449ebc3bf161ab56edd5c043 |
| MD5 hash: | 632ca90d0ec88484ddf719c0a5b9e91d |
| humanhash: | quiet-wolfram-georgia-friend |
| File name: | Instrukcja_CertSign·pdf.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 1'082'480 bytes |
| First seen: | 2023-07-12 06:27:57 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 1f23f452093b5c1ff091a2f9fb4fa3e9 (276 x GuLoader, 37 x RemcosRAT, 23 x AgentTesla) |
| ssdeep | 24576:whlXrkMvVlIefzKs5F4lJPy0A/++5fiUa+7FNREKREH9:GXoMvrH4l80xo7VEKREd |
| Threatray | 695 similar samples on MalwareBazaar |
| TLSH | T19A35129227B2CD03F381627C6956EF7D5E20DD94398ACD2226E8BDA77914733983A143 |
| 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 | fab2b6e4b4b4a4a4 (5 x Loki, 2 x NanoCore, 1 x GuLoader) |
| Reporter |  abuse_ch |
| Tags: | exe NanoCore |
Intelligence
File Origin
# of uploads :
1
# of downloads :
328
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Instrukcja_CertSign·pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-07-11 11:42:58 UTC
Tags:
n/a
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
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_60%
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:
n/a
Detection:
malicious
Classification:
evad
Score:
52 / 100
Signature
Multi AV Scanner detection for submitted file
Tries to detect virtualization through RDTSC time measurements
Behaviour
Behavior Graph:
n/a
Threat name:
Win32.PUA.Leonem
Status:
Malicious
First seen:
2023-07-11 07:27:11 UTC
File Type:
PE (Exe)
Extracted files:
10
AV detection:
13 of 23 (56.52%)
Threat level:
1/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Similar samples:
+ 685 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:nanocore discovery keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
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
Adds Run key to start application
Checks installed software on the system
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Loads dropped DLL
NanoCore
Malware Config
C2 Extraction:
wqqkgzmrdwxl8j.duckdns.org:23591
Unpacked files
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
SH256 hash:
b1d80d80dfb9794c72e6c3a71aacf04fb353ba48c244488f4712f5cc20d5f831
MD5 hash:
632ca90d0ec88484ddf719c0a5b9e91d
SHA1 hash:
5246cfa28c335912449ebc3bf161ab56edd5c043
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
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
Comments
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