MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fc07fd190d3fd931b826c344c3be9fd36c68c11561e2b4c78fc0c306de4ac976. 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
DonutLoader
Vendor detections: 12
| SHA256 hash: | fc07fd190d3fd931b826c344c3be9fd36c68c11561e2b4c78fc0c306de4ac976 |
|---|---|
| SHA3-384 hash: | 1a16131a086044c44536fbd482001d3e61eafe629cb35a7fd2d19f689e2b5472a9798943bbab311ad31c1882a805bde0 |
| SHA1 hash: | 27e63e0e7827e4979d1754ded4157e50f86aac93 |
| MD5 hash: | a92795d7d100d9342ed2638e365807dd |
| humanhash: | sierra-cola-cardinal-october |
| File name: | Letter_Outside_Orthodox_1.exe |
| Download: | download sample |
| Signature | DonutLoader |
| File size: | 16'165'894 bytes |
| First seen: | 2025-08-13 16:43:50 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 482eebfe826a0faf991483c492552de4 (2 x DonutLoader) |
| ssdeep | 196608:czd++FJS1mwEBNCe4Nwqa4kSLJJycEUalvV/J5Tq/Kee6kvfWPFppaJr7fo3:cNRwEBNCKqa43Lj2V9/JY/Kee6ftMQ |
| TLSH | T169F63361676550F2D1F7873ACDF6AF0DEB607066A32E3EEB120A54D47E933486C3A604 |
| TrID | 38.8% (.EXE) UPX compressed Win32 Executable (27066/9/6) 23.7% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5) 15.0% (.EXE) Win64 Executable (generic) (10522/11/4) 7.2% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.4% (.EXE) Win32 Executable (generic) (4504/4/1) |
| Magika | pebin |
| dhash icon | c8949c8de6b2aec6 (2 x Formbook, 2 x DonutLoader, 1 x Expiro) |
| Reporter |  aachum |
| Tags: | call-kakao-com DeerStealer donutloader exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
42
Origin country :
ESVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://call-kakao.com/join?=24F1A34E
Verdict:
Malicious activity
Analysis date:
2025-08-13 16:06:01 UTC
Tags:
pastebin evasion stealer ultravnc rmm-tool rhadamanthys
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Verdict:
Malicious
Score:
96.5%
Tags:
spoof virus
Result
Verdict:
Clean
Maliciousness:
Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
invalid-signature microsoft_visual_cc obfuscated overlay packed packed packer_detected signed
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Verdict:
Unknown
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Creates a thread in another existing process (thread injection)
Found direct / indirect Syscall (likely to bypass EDR)
Found many strings related to Crypto-Wallets (likely being stolen)
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Suricata IDS alerts for network traffic
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Writes to foreign memory regions
Behaviour
Behavior Graph:
Score:
22%
Verdict:
Benign
File Type:
PE
Verdict:
inconclusive
YARA:
7 match(es)
Tags:
.Net CAB:COMPRESSION:MSZIP Executable PDB Path PE (Portable Executable) Win 64 Exe x64
Verdict:
Malicious
Threat:
Trojan.Cryp
Threat name:
Win64.Trojan.Egairtigado
Status:
Malicious
First seen:
2025-08-13 16:45:01 UTC
File Type:
PE+ (Exe)
Extracted files:
19
AV detection:
9 of 24 (37.50%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
donutloader
Score:
10/10
Tags:
family:deerstealer family:donutloader discovery loader spyware stealer
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Browser Information Discovery
Reads user/profile data of web browsers
DeerStealer
Deerstealer family
Detects DeerStealer
Detects DonutLoader
DonutLoader
Donutloader family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
fc07fd190d3fd931b826c344c3be9fd36c68c11561e2b4c78fc0c306de4ac976
MD5 hash:
a92795d7d100d9342ed2638e365807dd
SHA1 hash:
27e63e0e7827e4979d1754ded4157e50f86aac93
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: | botnet_plaintext_c2 |
|---|---|
| Author: | cip |
| Description: | Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols. |
| Rule name: | DebuggerCheck__API |
|---|---|
| Reference: | https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara |
| Rule name: | golang_bin_JCorn_CSC846 |
|---|---|
| Author: | Justin Cornwell |
| Description: | CSC-846 Golang detection ruleset |
| Rule name: | mht_inside_word |
|---|---|
| Author: | dPhish |
| Description: | Detect embedded mht files inside microsfot word. |
| Rule name: | pe_detect_tls_callbacks |
|---|
| Rule name: | PE_Digital_Certificate |
|---|---|
| Author: | albertzsigovits |
| Rule name: | ProgramLanguage_Rust |
|---|---|
| Author: | albertzsigovits |
| Description: | Application written in Rust programming language |
| Rule name: | rhadamanthys_ |
|---|---|
| Author: | Michelle Khalil |
| Description: | This rule detects unpacked rhadamanthys malware samples. |
| Rule name: | Sus_CMD_Powershell_Usage |
|---|---|
| Author: | XiAnzheng |
| Description: | May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP) |
| Rule name: | Sus_Obf_Enc_Spoof_Hide_PE |
|---|---|
| Author: | XiAnzheng |
| Description: | Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP) |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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 |
Reviews
| ID | Capabilities | Evidence |
|---|---|---|
| WIN_BASE_API | Uses Win Base API | KERNEL32.dll::TerminateProcess KERNEL32.dll::GetSystemInfo KERNEL32.dll::GetStartupInfoW |
| WIN_BASE_IO_API | Can Create Files | KERNEL32.dll::CreateFileMappingW KERNEL32.dll::GetSystemDirectoryW |
| WIN_USER_API | Performs GUI Actions | USER32.dll::FindWindowA |
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