MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 73734608e9413c807c8f09f793b55b77425b328052b5fa4ff82d66d6d4c15a34. 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: 4

Intelligence 4 IOCs YARA 3 File information Comments

SHA256 hash:	73734608e9413c807c8f09f793b55b77425b328052b5fa4ff82d66d6d4c15a34
SHA3-384 hash:	9d7d28e9fdc9481f69847635e50ba1dff03fe96b46fa03ffed4ba9b22e55671bf4750f5defe27fb099ab4ac29269a875
SHA1 hash:	251863798fa7ea99d20a4d2f15d246d6d09313e8
MD5 hash:	4fc9db992ff1a4d7a15b04cc537713d1
humanhash:	harry-april-wolfram-california
File name:	48639e1420ed32793e6e804a3ab997f9.exe
Download:	download sample
Signature	FormBook Create hunting rule
File size:	126'976 bytes
First seen:	2020-04-06 13:45:12 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	5f0c90c109d16124e83cb7a25caef54f (28 x RemcosRAT, 1 x FormBook, 1 x NetWire)
ssdeep	3072:m1h1qaSs6IF9OK4b80S2Van4Va1cpcQjed5OzqhUVa:Sh1qn3IF9Obbj/a1cpcQjeHOzqhUV
Threatray	775 similar samples on MalwareBazaar
TLSH	F1C3E867F24B80A3D863027056507B72EEBCBC321A5D5157E7E8D8811DF588E9026AFF
Reporter	abuse_ch
Tags:	exe FormBook GuLoader

abuse_ch

Payload dropped by GuLoader from the following URL:
https://drive.google.com/uc?export=download&id=17Ukn6_AqHto9_Z7OEVYUQKbL2HBeMMvX

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection(s):

Win.Malware.Rescoms-6598304-0

Gathering data

Threat name:

Win32.Trojan.Rescoms

Status:

Malicious

First seen:

2020-04-06 14:35:29 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

30 of 31 (96.77%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=onzumchjie6ia7epbh3zhnk3o5bfwmuakk27ut7yfvtnnvgbli2a._file

Verdict:

malicious

Label(s):

remcos

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:	ach_RemcosRAT Create hunting rule
Author:	abuse.ch

Rule name:	win_remcos_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator

Rule name:	win_remcos_g0 Create hunting rule
Author:	Daniel Plohmann <daniel.plohmann<at>fkie.fraunhofer.de>

File information

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

d07c84e1a76a33a51167ad5b8146c134186ddfd519866cc13932bea91eebfe42

FormBook

exe 73734608e9413c807c8f09f793b55b77425b328052b5fa4ff82d66d6d4c15a34

(this sample)

Dropped by

MD5 48639e1420ed32793e6e804a3ab997f9

Dropped by

MD5 c7ca49decaf507c4042689c644ad19f0

Dropped by

GuLoader

Dropped by

SHA256 d07c84e1a76a33a51167ad5b8146c134186ddfd519866cc13932bea91eebfe42

Dropped by

SHA256 13c3779a9e9d0c6e4761a44f17e6ee8114e6f5db85aa82e07143cac705730f50

URLhaus

https://urlhaus.abuse.ch/url/333463/

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_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
GDI_PLUS_API	Interfaces with Graphics	gdiplus.dll::GdiplusStartup gdiplus.dll::GdipGetImageEncoders gdiplus.dll::GdipGetImageEncodersSize gdiplus.dll::GdipAlloc
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::mciSendStringA WINMM.dll::mciSendStringW WINMM.dll::PlaySoundW WINMM.dll::waveInAddBuffer WINMM.dll::waveInClose WINMM.dll::waveInOpen
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AdjustTokenPrivileges
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteExA SHELL32.dll::ShellExecuteW
URL_MONIKERS_API	Can Download & Execute components	urlmon.dll::URLDownloadToFileW urlmon.dll::URLOpenBlockingStreamW
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CreateProcessW KERNEL32.dll::CreateProcessA KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken KERNEL32.dll::VirtualAllocEx KERNEL32.dll::WriteProcessMemory
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetDriveTypeA KERNEL32.dll::GetStartupInfoA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::AllocConsole
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateFileMappingA KERNEL32.dll::CreateFileW KERNEL32.dll::DeleteFileA KERNEL32.dll::DeleteFileW
WIN_BASE_USER_API	Retrieves Account Information	ADVAPI32.dll::GetUserNameW ADVAPI32.dll::LookupPrivilegeValueA
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegCreateKeyA ADVAPI32.dll::RegCreateKeyW ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegDeleteKeyA ADVAPI32.dll::RegOpenKeyExA ADVAPI32.dll::RegOpenKeyExW
WIN_SVC_API	Can Manipulate Windows Services	ADVAPI32.dll::ChangeServiceConfigW ADVAPI32.dll::ControlService ADVAPI32.dll::OpenSCManagerW ADVAPI32.dll::OpenSCManagerA ADVAPI32.dll::OpenServiceW ADVAPI32.dll::QueryServiceConfigW
WIN_USER_API	Performs GUI Actions	USER32.dll::AppendMenuA USER32.dll::EmptyClipboard USER32.dll::OpenClipboard USER32.dll::CreateWindowExA

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