MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ea2305b81698e84ea423f196cbea17b3eddc98c57d5f53342f5ba82fb5ea3856. 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 8 File information Comments

SHA256 hash: ea2305b81698e84ea423f196cbea17b3eddc98c57d5f53342f5ba82fb5ea3856
SHA3-384 hash: ad40e94fb7044a7f4502ff09595668716f7d6a45a6f0e9ca3b72787ff84fdf4229dab1912f85dd024030f11f6a221ca6
SHA1 hash: cf9cb3a34609c546e233680feac51bc7304ee823
MD5 hash: aac3fa6db9a27ff08d01dc0e1ef407d3
humanhash: helium-ink-cold-seven
File name:RFQ-344-190.scr
Download: download sample
Signature Formbook
File size:806'408 bytes
First seen:2025-01-06 06:53:08 UTC
Last seen:2025-01-06 17:00:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:qnfuRgkOwmQhVYdeN7wD//8w1P78zF7CM1qcRJZFHt:+3kOw9VueN0D//R1P78zF+MA2N
TLSH T1FB05015523A4EB02C0A24BF118B0E3F853799EEDA910E3075FFDBCEB39697056918257
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
File icon (PE):PE icon
dhash icon b2495557158902a2 (3 x Formbook, 1 x SnakeKeylogger, 1 x RemcosRAT)
Reporter abuse_ch
Tags:exe FormBook scr

Intelligence


File Origin
# of uploads :
2
# of downloads :
430
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
RFQ-344-190.scr
Verdict:
Malicious activity
Analysis date:
2025-01-06 06:57:55 UTC
Tags:
netreactor

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
93.3%
Tags:
shell virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected phishing
Result
Verdict:
SUSPICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook, PureLog Stealer
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Initial sample is a PE file and has a suspicious name
Loading BitLocker PowerShell Module
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1584677 Sample: RFQ-344-190.scr.exe Startdate: 06/01/2025 Architecture: WINDOWS Score: 100 22 Antivirus / Scanner detection for submitted sample 2->22 24 Multi AV Scanner detection for submitted file 2->24 26 Yara detected PureLog Stealer 2->26 28 8 other signatures 2->28 7 RFQ-344-190.scr.exe 4 2->7         started        process3 file4 20 C:\Users\user\...\RFQ-344-190.scr.exe.log, ASCII 7->20 dropped 30 Adds a directory exclusion to Windows Defender 7->30 11 powershell.exe 23 7->11         started        14 RFQ-344-190.scr.exe 7->14         started        signatures5 process6 signatures7 32 Loading BitLocker PowerShell Module 11->32 16 conhost.exe 11->16         started        18 WmiPrvSE.exe 11->18         started        process8
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Status:
Malicious
First seen:
2025-01-06 04:37:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
unknown_loader_037 formbook
Similar samples:
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
ec17c20e808988bedcc850bd78043d11386e83fbca3abd217260478ba3882998
MD5 hash:
bad1c7309750214dccd121f41e714b47
SHA1 hash:
8d5faf36a0449d02b3fa05b4a9724687c765ad37
Detections:
win_formbook_g0
SH256 hash:
319be211ee62f3cbb25192c2d621e29d1e41e9fd76cf3bf5690ab309acccdc40
MD5 hash:
69c8921faa9a73f3ba3b48e1ed624679
SHA1 hash:
b1693ec2672e62769d5708948dfa4c964f36a785
SH256 hash:
ceff4dc2e67e31720739ddee3b22310ff85bd12d022c8ac1ca9306f74ffb94cc
MD5 hash:
db02a9c9927d0170ce35f19ef73b891f
SHA1 hash:
5baccdaa0a18fe781a8dff74a2390279c3d51ce2
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
ea2305b81698e84ea423f196cbea17b3eddc98c57d5f53342f5ba82fb5ea3856
MD5 hash:
aac3fa6db9a27ff08d01dc0e1ef407d3
SHA1 hash:
cf9cb3a34609c546e233680feac51bc7304ee823
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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
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.

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_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments