MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4bd5a307dc3115748514e82e544ae8714d48bc834aadecb7544b1af15c48adc0. 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
UACModuleSmokeLoader
Vendor detections: 10
| SHA256 hash: | 4bd5a307dc3115748514e82e544ae8714d48bc834aadecb7544b1af15c48adc0 |
|---|---|
| SHA3-384 hash: | 3dfe2d2f02461607c0e4946ac54a2b397119fe175dc921ca2a364e888a5f462f47deb30a1fb745930aa68aa0120b3994 |
| SHA1 hash: | d03d460e1f1cf5de50ae9daff16ee39b919b126e |
| MD5 hash: | b8bc758d4f9ae3a606a804e2c102cf15 |
| humanhash: | queen-spaghetti-massachusetts-mississippi |
| File name: | b8bc758d4f9ae3a606a804e2c102cf15.exe |
| Download: | download sample |
| Signature | UACModuleSmokeLoader |
| File size: | 589'824 bytes |
| First seen: | 2023-05-15 11:56:07 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | de57c7491ab6aacc1fd943a10aa4ff72 (2 x UACModuleSmokeLoader) |
| ssdeep | 12288:Mn7uj0ebRZD9ibDRWO42RiwQYaSbb3rWRY:MnS02fwJHiFYaSb3WRY |
| Threatray | 34 similar samples on MalwareBazaar |
| TLSH | T159C4E11372D16C71E66607728E2EC7F86A2FF5614F65BBEB23485A2F09B01E1C572312 |
| TrID | 39.5% (.EXE) InstallShield setup (43053/19/16) 28.6% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 9.6% (.EXE) Win64 Executable (generic) (10523/12/4) 6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.6% (.EXE) Win16 NE executable (generic) (5038/12/1) |
| File icon (PE): |  |
| dhash icon | 70d0decacecad2dd (1 x UACModuleSmokeLoader) |
| Reporter |  abuse_ch |
| Tags: | exe UACModuleSmokeLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
246
Origin country :
NLVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
b8bc758d4f9ae3a606a804e2c102cf15.exe
Verdict:
Malicious activity
Analysis date:
2023-05-15 12:02:28 UTC
Tags:
installer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Rewriting of the hard drive's master boot record
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
greyware packed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Pitou
Verdict:
Malicious
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
88 / 100
Signature
Contains functionality to infect the boot sector
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Smokeloader
Status:
Malicious
First seen:
2023-05-15 11:57:09 UTC
File Type:
PE (Exe)
Extracted files:
26
AV detection:
19 of 24 (79.17%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Similar samples:
+ 24 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
6/10
Tags:
bootkit persistence
Behaviour
Writes to the Master Boot Record (MBR)
Unpacked files
SH256 hash:
b1272de3f0fc0785efa4c692b4a1471c9b419dd93b7dcd4c9dc4fb6c09abc549
MD5 hash:
9872fdbffbdb3145dc372df17ee4fdde
SHA1 hash:
595ddab28edeae1793481367e495e8db4c329446
SH256 hash:
4bd5a307dc3115748514e82e544ae8714d48bc834aadecb7544b1af15c48adc0
MD5 hash:
b8bc758d4f9ae3a606a804e2c102cf15
SHA1 hash:
d03d460e1f1cf5de50ae9daff16ee39b919b126e
Verdict:
Malicious
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: | ICMLuaUtil_UACMe_M41 |
|---|---|
| Author: | Marius 'f0wL' Genheimer <hello@dissectingmalwa.re> |
| Description: | A Yara rule for UACMe Method 41 -> ICMLuaUtil Elevated COM interface |
| Reference: | https://github.com/hfiref0x/UACME |
| Rule name: | INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM |
|---|---|
| Author: | ditekSHen |
| Description: | Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) |
| Rule name: | pdb_YARAify |
|---|---|
| Author: | @wowabiy314 |
| Description: | PDB |
| Rule name: | smokeloader_uac_module |
|---|---|
| Author: | Nikolaos 'n0t' Totosis |
| Description: | UAC bypass/file dropped by Smokeloader |
| Rule name: | Windows_Trojan_Smokeloader_3687686f |
|---|---|
| Author: | Elastic Security |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
exe 4bd5a307dc3115748514e82e544ae8714d48bc834aadecb7544b1af15c48adc0
(this sample)
Delivery method
Distributed via web download
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