MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 d91d04a052c74e24823eeeeec79d14cf3a5bcdd50ca4867d0cffd5a6188085d7. 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: 11
| SHA256 hash: | d91d04a052c74e24823eeeeec79d14cf3a5bcdd50ca4867d0cffd5a6188085d7 |
|---|---|
| SHA3-384 hash: | ea3810fbc34c69f971f1089f597bd42f458353732657e0fd004842002bf8172eaddbcc3f01a750fd89ef9a25c42b847b |
| SHA1 hash: | 0d619c30d819564ec1f32cac2dfabd3c772f4802 |
| MD5 hash: | 8640d5837c0fdbdc8a4b6966da2848ca |
| humanhash: | november-eleven-colorado-florida |
| File name: | vbc.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'015'528 bytes |
| First seen: | 2022-05-03 14:28:12 UTC |
| Last seen: | 2022-05-03 14:32:35 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 24576:h4qzgXHlCKbWafMySBuUxObP+qvx3QR9/FsNGFoyrsvEgzs6h3FT1xvBMRI6:eb3lHyQP+qvx3QR9/FsNGFoyrsvEgzsf |
| Threatray | 15'155 similar samples on MalwareBazaar |
| TLSH | T1B6256BF1E24504E9D45EBEFAFA81C984077DC1B21DF1C64A6E38AAD55883CD20E1E778 |
| TrID | 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 9.9% (.EXE) Win64 Executable (generic) (10523/12/4) 6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.7% (.EXE) Win16 NE executable (generic) (5038/12/1) 4.2% (.EXE) Win32 Executable (generic) (4505/5/1) |
| Reporter |  JAMESWT_WT |
| Tags: | exe FormBook signed |
Code Signing Certificate
| Organisation: | effvsd |
|---|---|
| Issuer: | effvsd |
| Algorithm: | sha1WithRSAEncryption |
| Valid from: | 2022-04-26T02:56:40Z |
| Valid to: | 2023-04-26T02:56:40Z |
| Serial number: | 06f0550cbfb54d4775c107d4d68a0707 |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 52146395e85a59b2937ca232763e8599fbb6f77d23a6771dd10c112fcb379217 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
3
# of downloads :
272
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
69d989d818dc639f1c0a8963d7649164b105b12f9fd42f57f4a4eae269cd0541.xlsx
Verdict:
Malicious activity
Analysis date:
2022-04-29 03:02:37 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Launching a process
Sending a custom TCP request
Сreating synchronization primitives
Searching for synchronization primitives
Creating a file
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
5/10
Confidence:
100%
Tags:
obfuscated packed
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
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Found malware configuration
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Yara detected UAC Bypass using CMSTP
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-26 11:02:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
2
AV detection:
17 of 41 (41.46%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 15'145 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:apju evasion loader rat suricata
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Uses the VBS compiler for execution
Looks for VMWare Tools registry key
Looks for VirtualBox Guest Additions in registry
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
a23817982a5bc9e565504e41cf871282db3ff19e56bc78e8188b91b2a49f15c8
MD5 hash:
8c89b01e848537d781c15b50fac37c0d
SHA1 hash:
2d70fedf3254eb4f07f959012ed45fe7a189e89a
SH256 hash:
70b785e5cb5b2e61c0f5da4a71ab0bbd14d9a0849387f037e0d75cc1ffe0a082
MD5 hash:
5951b52c9b4d11ca7f4f33e5a3fb2c31
SHA1 hash:
0bc54fd699fff7b93e5c447a141c0d904924ab0d
SH256 hash:
d91d04a052c74e24823eeeeec79d14cf3a5bcdd50ca4867d0cffd5a6188085d7
MD5 hash:
8640d5837c0fdbdc8a4b6966da2848ca
SHA1 hash:
0d619c30d819564ec1f32cac2dfabd3c772f4802
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
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
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