MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5. 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


Formbook


Vendor detections: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5
SHA3-384 hash: ef86cc99705220a802897bcf75ac59fa38070f58c400935cdac344f6bd46111fe173c5e2a26c9900527a032640c6fe4d
SHA1 hash: b63e0dc98ca87974a735a00c3cb0531d4c2e49de
MD5 hash: 5a58e2348883014d1b494ab38035d4df
humanhash: ack-india-diet-one
File name:rMactation.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:936'296 bytes
First seen:2024-10-23 14:30:10 UTC
Last seen:2024-10-23 15:55:56 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b40f29cd171eb54c01b1dd2683c9c26b (45 x GuLoader, 16 x RemcosRAT, 15 x VIPKeylogger)
ssdeep 12288:JSl6vY7dH2a0fHhfCEeRnVXCb95Feh2FCCMntz6I8128TsXULDh+gDBf6j4Ydcvs:slcY7dH2aShcVX09W2UVf+DLD1BbYGU
TLSH T149152221BBE09AB7C46907359CD7CBA5A335FE844F0253872340F7AE3E772C62A45096
TrID 92.7% (.EXE) NSIS - Nullsoft Scriptable Install System (846567/2/133)
3.4% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
1.1% (.EXE) Win64 Executable (generic) (10522/11/4)
0.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
0.5% (.EXE) Win16 NE executable (generic) (5038/12/1)
Magika pebin
File icon (PE):PE icon
dhash icon cc6db952a16cc6e7 (1 x Formbook)
Reporter FXOLabs
Tags:exe FormBook signed

Code Signing Certificate

Organisation:Hageen
Issuer:Hageen
Algorithm:sha256WithRSAEncryption
Valid from:2024-08-10T00:27:46Z
Valid to:2027-08-10T00:27:46Z
Serial number: 013ba8e991d2d439a1611aed501cca375eaa8057
Thumbprint Algorithm:SHA256
Thumbprint: ab289c5f35776c8898aace3af945f183fa63cf378ece40372906efed87818095
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
413
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rMactation.exe
Verdict:
No threats detected
Analysis date:
2024-10-23 14:36:42 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/dacf6611-7f6d-4f19-8844-e53ef1325b9a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.TrojanX-gen.29105.26767.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6719095e5a02f8393c7359e5
Tags:
Injection Exploit Obfusc
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file
Creating a file in the %AppData% subdirectories
Delayed reading of the file
Searching for the window
Creating a file in the %temp% subdirectories
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
installer lolbin microsoft_visual_cc overlay packed shell32
Link:
https://www.filescan.io/uploads/671908a5d875ce8b57d76f6e/reports/cd1fa6af-bceb-4970-b68e-c81f7a15ebae/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5
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:
Suspicious
Link:
https://analyze.intezer.com/analyses/80779772-dba9-4a38-b499-9dfc59002265
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
76 / 100
Link:
https://www.joesandbox.com/analysis/1540273
Signature
AI detected suspicious sample
Malicious sample detected (through community Yara rule)
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
Score:
98%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2024-10-23 14:31:10 UTC
File Type:
PE (Exe)
Extracted files:
11
AV detection:
2 of 38 (5.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2radwma73a5wheq34u5w2pu57k4yp7zkuezvcgz3fyne3tbczxcq._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/241023-rvpddavdpc/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Drops file in Windows directory
Drops file in System32 directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Legitimate hosting services abused for malware hosting/C2
Loads dropped DLL
Guloader,Cloudeye
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/428ea0d4-5312-40c1-a73f-59870447ab2c
Unpacked files
SH256 hash:
3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
MD5 hash:
cf85183b87314359488b850f9e97a698
SHA1 hash:
6b6c790037eec7ebea4d05590359cb4473f19aea
Link:
https://www.unpac.me/results/19e00696-8001-4217-b100-d376e6cd5815/
SH256 hash:
d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5
MD5 hash:
5a58e2348883014d1b494ab38035d4df
SHA1 hash:
b63e0dc98ca87974a735a00c3cb0531d4c2e49de
Link:
https://www.unpac.me/results/19e00696-8001-4217-b100-d376e6cd5815/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5

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:Detect_SliverFox_String
Create hunting rule
Author:huoji
Description:Detect files is `SliverFox` malware
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5

(this sample)

  
Delivery method
Distributed via e-mail attachment

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
IDTitleSeverity
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
COM_BASE_APICan Download & Execute componentsole32.dll::CoCreateInstance
SHELL_APIManipulates System ShellSHELL32.dll::ShellExecuteA
SHELL32.dll::SHFileOperationA
SHELL32.dll::SHGetFileInfoA
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CreateProcessA
KERNEL32.dll::CloseHandle
KERNEL32.dll::CreateThread
WIN_BASE_APIUses Win Base APIKERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetDiskFreeSpaceA
KERNEL32.dll::GetCommandLineA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CopyFileA
KERNEL32.dll::CreateDirectoryA
KERNEL32.dll::CreateFileA
KERNEL32.dll::DeleteFileA
KERNEL32.dll::MoveFileA
KERNEL32.dll::GetWindowsDirectoryA
WIN_REG_APICan Manipulate Windows RegistryADVAPI32.dll::RegCreateKeyExA
ADVAPI32.dll::RegDeleteKeyA
ADVAPI32.dll::RegOpenKeyExA
ADVAPI32.dll::RegQueryValueExA
ADVAPI32.dll::RegSetValueExA
WIN_USER_APIPerforms GUI ActionsUSER32.dll::AppendMenuA
USER32.dll::EmptyClipboard
USER32.dll::FindWindowExA
USER32.dll::OpenClipboard
USER32.dll::PeekMessageA
USER32.dll::CreateWindowExA

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