MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 caf073b1d85bc136488382be2c83c264ac64d2df279752341b1c4601c6201a41. 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: 11
| SHA256 hash: | caf073b1d85bc136488382be2c83c264ac64d2df279752341b1c4601c6201a41 |
|---|---|
| SHA3-384 hash: | ed320b7b26d8c773678f10b058cfad426ea458a9eb044866a6c9349c263b2ac3482debc67b139ff4fb58709b84691b57 |
| SHA1 hash: | 4ba8b368c32fa57703613e0c98d90381b872d5ad |
| MD5 hash: | 42ee1ad3b4600a955888780e8899c1ce |
| humanhash: | mirror-zebra-beer-yellow |
| File name: | chrome.exe |
| Download: | download sample |
| Signature | NanoCore |
| File size: | 597'440 bytes |
| First seen: | 2023-02-20 15:15:48 UTC |
| Last seen: | 2023-02-20 16:30:24 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b34f154ec913d2d2c435cbd644e91687 (526 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer) |
| ssdeep | 12288:L5Z+mqofs6TaXML3crUlbIInrHR2Fwn6DijBtpl2i6F+0cfjoop:tUJN9MwrfInrHvnY7ipzoop |
| Threatray | 621 similar samples on MalwareBazaar |
| TLSH | T12ED422074AB14887F1A61A341FFB8676F8FA5C11742C239B9BB27F093900AC1E59EF55 |
| 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 | f0e4caccccacd870 (4 x GuLoader, 1 x NanoCore) |
| Reporter |  0xSnowl |
| Tags: | exe NanoCore signed |
Code Signing Certificate
| Organisation: | |
|---|---|
| Issuer: | |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2023-01-31T06:37:23Z |
| Valid to: | 2026-01-30T06:37:23Z |
| Serial number: | 4e981d23854531c3a9e3644f2e173e9ddd78cb24 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 96fc006c0636833aa714596b020eac65a7069441fc9cabb455ffcb7f81b5ca77 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
2
# of downloads :
311
Origin country :
THVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
chrome.exe
Verdict:
Malicious activity
Analysis date:
2023-02-20 15:16:23 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% subdirectories
Creating a file
Delayed reading of the file
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
5/10
Confidence:
80%
Tags:
overlay packed shell32.dll
Verdict:
Malicious
Labled as:
Win/grayware_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:
NanoCore, GuLoader
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Signature
Hides that the sample has been downloaded from the Internet (zone.identifier)
Sigma detected: NanoCore
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Downloader.Minix
Status:
Malicious
First seen:
2023-02-20 15:16:12 UTC
File Type:
PE (Exe)
Extracted files:
15
AV detection:
5 of 25 (20.00%)
Threat level:
3/5
Detection(s):
Suspicious file
Verdict:
unknown
Similar samples:
+ 611 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Score:
10/10
Tags:
family:guloader family:nanocore downloader keylogger persistence spyware stealer trojan
Behaviour
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
Legitimate hosting services abused for malware hosting/C2
Checks QEMU agent file
Loads dropped DLL
Guloader,Cloudeye
NanoCore
Malware Config
C2 Extraction:
212.87.204.153:6100
Unpacked files
SH256 hash:
c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448
MD5 hash:
9625d5b1754bc4ff29281d415d27a0fd
SHA1 hash:
80e85afc5cccd4c0a3775edbb90595a1a59f5ce0
SH256 hash:
70e1b9c728808d16d62c80157247803837ddc74c3d8df66bc5311094f7bdbf05
MD5 hash:
75dc68aefd141ad35a4f72e4e10b0067
SHA1 hash:
b82cd4276203f2af57655584acf5df1696a05879
SH256 hash:
caf073b1d85bc136488382be2c83c264ac64d2df279752341b1c4601c6201a41
MD5 hash:
42ee1ad3b4600a955888780e8899c1ce
SHA1 hash:
4ba8b368c32fa57703613e0c98d90381b872d5ad
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
File information
The table below shows additional information about this malware sample such as delivery method and external references.
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