MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 1bee721c9ec771b4ec07ecdf4ca0f623b6f365bae70aa991653ea78b26400696. 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
Nitol
Vendor detections: 12
| SHA256 hash: | 1bee721c9ec771b4ec07ecdf4ca0f623b6f365bae70aa991653ea78b26400696 |
|---|---|
| SHA3-384 hash: | fc5862bfc692be65f4636afe52df20489125b15c7b6f8630371a53f796ce0587fc6a47a1df2e4c02662df078d0c52a41 |
| SHA1 hash: | f07673c60f166e1449a2a77a30da4569262bcac3 |
| MD5 hash: | 24454252738e7239dc45f4d59e3da23d |
| humanhash: | april-triple-freddie-maine |
| File name: | CirnoRAT.exe |
| Download: | download sample |
| Signature | Nitol |
| File size: | 17'267'712 bytes |
| First seen: | 2025-04-07 05:00:45 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'658 x Formbook, 12'248 x SnakeKeylogger) |
| ssdeep | 196608:MjpaWrUHSR6QqOyjr2LF3Ye6YmnwqdU142US/XV2dkhYtOEi4Gsq4G8pVK:zWz1cjSLFoBYmn5U1PV/XVOrs |
| TLSH | T15E07AE01E7E48F17D1BE0375947254049BF5F89B9766DA5A324CB1AE2B72B002A6333F |
| TrID | 72.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.3% (.EXE) Win64 Executable (generic) (10522/11/4) 4.9% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.4% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9) |
| Magika | pebin |
| dhash icon | 032522a3e3c347c7 (1 x Nitol) |
| Reporter |  FelloBoiYuuka |
| Tags: | exe Nitol RAT trojan |
Intelligence
File Origin
# of uploads :
1
# of downloads :
724
Origin country :
CAVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
CirnoRAT.exe
Verdict:
Suspicious activity
Analysis date:
2025-04-07 05:03:38 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
99.9%
Tags:
vmdetect crysan
Result
Verdict:
Malware
Maliciousness:
Behaviour
Сreating synchronization primitives
Enabling the 'hidden' option for analyzed file
Creating a window
Connection attempt
Moving of the original file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
agenttesla anti-vm explorer fingerprint lolbin obfuscated quasarrat reconnaissance regedit remote wscript
Verdict:
Malicious
Labled as:
MSIL.PasswordStealerA.Generic
Verdict:
Suspicious
Result
Threat name:
Nitol
Detection:
malicious
Classification:
troj
Score:
68 / 100
Signature
Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Protects its processes via BreakOnTermination flag
Yara detected Nitol
Behaviour
Behavior Graph:
Score:
94%
Verdict:
Malware
File Type:
PE
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Status:
Malicious
First seen:
2025-03-05 01:52:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
85
AV detection:
22 of 24 (91.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
n/a
Score:
3/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Verdict:
Malicious
Tags:
Win.Packed.Msilperseus-9956592-0
YARA:
n/a
Unpacked files
SH256 hash:
1bee721c9ec771b4ec07ecdf4ca0f623b6f365bae70aa991653ea78b26400696
MD5 hash:
24454252738e7239dc45f4d59e3da23d
SHA1 hash:
f07673c60f166e1449a2a77a30da4569262bcac3
SH256 hash:
450302c26d7d3d22e2c82d9146af0b0b84d7482c7a859078b22795283a013f2a
MD5 hash:
4f430ad45c332d5d8fbb8cf8817af1b5
SHA1 hash:
50bcbc66899143561ff461a557d3703c994c8bf0
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: | AgentTesla_DIFF_Common_Strings_01 |
|---|---|
| Author: | schmidtsz |
| Description: | Identify partial Agent Tesla strings |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | INDICATOR_SUSPICIOUS_Binary_References_Browsers |
|---|---|
| Author: | ditekSHen |
| Description: | Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. |
| Rule name: | Jupyter_infostealer |
|---|---|
| Author: | CD_R0M_ |
| Description: | Rule for Jupyter Infostealer/Solarmarker malware from september 2021-December 2022 |
| Rule name: | Lumma_Stealer_Detection |
|---|---|
| Author: | ashizZz |
| Description: | Detects a specific Lumma Stealer malware sample using unique strings and behaviors |
| Reference: | https://seanthegeek.net/posts/compromized-store-spread-lumma-stealer-using-fake-captcha/ |
| Rule name: | NET |
|---|---|
| Author: | malware-lu |
| Rule name: | pe_imphash |
|---|
| Rule name: | RANSOMWARE |
|---|---|
| Author: | ToroGuitar |
| Rule name: | Rooter |
|---|---|
| Author: | Seth Hardy |
| Description: | Rooter |
| Rule name: | RooterStrings |
|---|---|
| Author: | Seth Hardy |
| Description: | Rooter Identifying Strings |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | vmdetect |
|---|---|
| Author: | nex |
| Description: | Possibly employs anti-virtualization techniques |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
BLint
The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.
Findings
| ID | Title | Severity |
|---|---|---|
| CHECK_AUTHENTICODE | Missing Authenticode | high |
| CHECK_DLL_CHARACTERISTICS | Missing dll Security Characteristics (GUARD_CF) | high |
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