MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db. 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: 16

Intelligence 16 IOCs YARA 5 File information Comments

SHA256 hash:	a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db
SHA3-384 hash:	5b019ac56063b7b9ed31e99dd0263c926c4c86162278c609257f88a68d58acbb6366946f9692fa80eb7f463ea1c866ba
SHA1 hash:	b7780024fb645196808de54fcb3d48a5581c026d
MD5 hash:	df6915639adaa48dad6b5cad220f1b73
humanhash:	lamp-papa-wyoming-mountain
File name:	Etisalat Summary Bill for the Month of August.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'192'448 bytes
First seen:	2024-08-30 08:24:45 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	948cc502fe9226992dce9417f952fce3 (1'182 x CredentialFlusher, 446 x Formbook, 231 x AgentTesla)
ssdeep	24576:uqDEvCTbMWu7rQYlBQcBiT6rprG8aRo8Awaa:uTvC/MTQYxsWR7aRo8n
TLSH	T1FC45BF0273D1C062FF9B96334B5AF6115BBC69260123E61F13A81DB9BE701B1563E7A3
TrID	68.8% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 12.5% (.EXE) Win64 Executable (generic) (10523/12/4) 6.0% (.EXE) Win16 NE executable (generic) (5038/12/1) 5.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.4% (.EXE) OS/2 Executable (generic) (2029/13)
Magika	pebin
File icon (PE):
dhash icon	aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter	threatcat_ch
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

446

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Etisalat Summary Bill for the Month of August.exe

Verdict:

No threats detected

Analysis date:

2024-08-30 08:47:10 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/c928b0e9-ad04-45ee-b553-71fe7bc0f4ce

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

SecuriteInfo.com.Trojan.Generic.33203615.28472.17882.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=66d181e3fe69a9e56049f1f1

Tags:

Network Stealth Inject

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Creating a file in the %temp% directory

Launching a process

Сreating synchronization primitives

Launching cmd.exe command interpreter

Setting browser functions hooks

Unauthorized injection to a system process

Unauthorized injection to a browser process

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

autoit epmicrosoft_visual_cc fingerprint keylogger lolbin microsoft_visual_cc packed shell32

Link:

https://www.filescan.io/uploads/66d181e83c4b518fb3a4e454/reports/d5041f4a-fb33-48e3-9af4-6368846f759d/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db

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:

Malicious

Link:

https://analyze.intezer.com/analyses/79aeee7a-883c-47ce-818c-e0eb7931b969

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1501709

Signature

AI detected suspicious sample

Antivirus detection for URL or domain

Binary is likely a compiled AutoIt script file

C2 URLs / IPs found in malware configuration

Found API chain indicative of sandbox detection

Found malware configuration

Initial sample is a PE file and has a suspicious name

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Modifies the context of a thread in another process (thread injection)

Modifies the prolog of user mode functions (user mode inline hooks)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Performs DNS queries to domains with low reputation

Queues an APC in another process (thread injection)

Sample uses process hollowing technique

Suricata IDS alerts for network traffic

Switches to a custom stack to bypass stack traces

System process connects to network (likely due to code injection or exploit)

Tries to detect virtualization through RDTSC time measurements

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db/

Threat name:

Win32.Trojan.AutoitInject

Status:

Malicious

First seen:

2024-08-30 08:25:06 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

18 of 24 (75.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=u464gqltpikxesbtsmvyitheireqqfmlfnqfmodhtdseai2tmtnq._file

Verdict:

malicious

Label(s):

formbook

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:pt46 discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/240830-kbabsavalc/

Behaviour

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Formbook payload

Formbook

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/38f33416-d77e-4e25-8db7-a7cebd093438

Unpacked files

SH256 hash:

d365d5b5f59ae2236f2f2f247e7e40e07d5f8ae480ba7d95303eca918ea81ec2

MD5 hash:

476cb924deb9c610b190467faedc3423

SHA1 hash:

824dd99b46715442197fc60ca16950e63e0ed623

Detections:

FormBook

win_formbook_g0

win_formbook_auto

win_formbook_w0

Formbook

Link:

https://www.unpac.me/results/a3cc4de8-f065-43a9-903d-f1e732ca64fe/

Parent samples :

cb94f7e2d32391ffa226f27e39543a099f2867c9cc7602fb964b4358132b6a50
d2944ccc7a3e0b9ca0ff84c52abaa3d05c00f6cfc6ff0e669cc152fbb79fd961
9b5f439bf7b59558b0b4dea2c1c387de8bd122fb2f91692030004ebeb24ab808
d2a39b14a5228cf9cbaa0535645985cccc4bf04328e4de0592483b06b623242e
c20046a5e5da38647ee18263ac2cbe72a6312d3cb53a9e38c9a11f187d6e4bd0
ec7a824c186a8f7611b230191c74159fae6cf11a8ba40831f67052e991adc4c5
461a2375bc1ab191cca91667ea8aecd498fad2b524bc81ca49eb7d5674063331
49bae482a9eeeb1792f15f03abbc8e6454d6b7e9fd78dbf7f3081d8dbaa9d450
5903a6e132492859e71ad0542938af1fe807e0110fdb132725b7e6fbf5e94b5e
007c997b49ac0889e71757762c82432a975a273eda4c871acec3c0823c6ea530
633defdc371a3cfd3641fd09c17ed6c0c9b8634ddb8d2de5c24a9393ac37e05a
a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db
ad796730fe76da567b892419b2cdba44eeaef29bf62b637c3c3af4cce42886ce

SH256 hash:

a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db

MD5 hash:

df6915639adaa48dad6b5cad220f1b73

SHA1 hash:

b7780024fb645196808de54fcb3d48a5581c026d

Detections:

AutoIT_Compiled

Link:

https://www.unpac.me/results/a3cc4de8-f065-43a9-903d-f1e732ca64fe/

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/a73dc341737a/report/overview.html

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/a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db

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:	AutoIT_Compiled Create hunting rule
Author:	@bartblaze
Description:	Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	pe_detect_tls_callbacks Create hunting rule

File information

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

Malspam

Formbook

exe a73dc341737a15724833932b844ce4444908158b2b6056386798e440235364db

(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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical

Reviews

ID	Capabilities	Evidence
AUTH_API	Manipulates User Authorization	ADVAPI32.dll::AllocateAndInitializeSid ADVAPI32.dll::CopySid ADVAPI32.dll::FreeSid ADVAPI32.dll::GetLengthSid ADVAPI32.dll::GetTokenInformation ADVAPI32.dll::GetAce
COM_BASE_API	Can Download & Execute components	ole32.dll::CLSIDFromProgID ole32.dll::CoCreateInstance ole32.dll::CoCreateInstanceEx ole32.dll::CoInitializeSecurity ole32.dll::CreateStreamOnHGlobal
MULTIMEDIA_API	Can Play Multimedia	WINMM.dll::mciSendStringW WINMM.dll::timeGetTime WINMM.dll::waveOutSetVolume
SECURITY_BASE_API	Uses Security Base API	ADVAPI32.dll::AddAce ADVAPI32.dll::AdjustTokenPrivileges ADVAPI32.dll::CheckTokenMembership ADVAPI32.dll::DuplicateTokenEx ADVAPI32.dll::GetAclInformation ADVAPI32.dll::GetSecurityDescriptorDacl
SHELL_API	Manipulates System Shell	SHELL32.dll::ShellExecuteExW SHELL32.dll::ShellExecuteW SHELL32.dll::SHFileOperationW
WIN32_PROCESS_API	Can Create Process and Threads	ADVAPI32.dll::CreateProcessAsUserW KERNEL32.dll::CreateProcessW ADVAPI32.dll::CreateProcessWithLogonW KERNEL32.dll::OpenProcess ADVAPI32.dll::OpenProcessToken ADVAPI32.dll::OpenThreadToken
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::SetSystemPowerState KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetDriveTypeW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileExW KERNEL32.dll::CopyFileW KERNEL32.dll::CreateDirectoryW KERNEL32.dll::CreateHardLinkW IPHLPAPI.DLL::IcmpCreateFile KERNEL32.dll::CreateFileW
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.dll::GetComputerNameW ADVAPI32.dll::GetUserNameW ADVAPI32.dll::LogonUserW ADVAPI32.dll::LookupPrivilegeValueW
WIN_NETWORK_API	Supports Windows Networking	MPR.dll::WNetAddConnection2W MPR.dll::WNetUseConnectionW
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegConnectRegistryW ADVAPI32.dll::RegCreateKeyExW ADVAPI32.dll::RegDeleteKeyW ADVAPI32.dll::RegOpenKeyExW ADVAPI32.dll::RegQueryValueExW ADVAPI32.dll::RegSetValueExW
WIN_USER_API	Performs GUI Actions	USER32.dll::BlockInput USER32.dll::CloseDesktop USER32.dll::CreateMenu USER32.dll::EmptyClipboard USER32.dll::FindWindowExW USER32.dll::FindWindowW

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