MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 13f3e02e0795dd88cc0396a1e15856609cd64931649e2bd2aa6c7e39d5315607. 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: 8
| SHA256 hash: | 13f3e02e0795dd88cc0396a1e15856609cd64931649e2bd2aa6c7e39d5315607 |
|---|---|
| SHA3-384 hash: | a58fd68f5baca4a0d3dcbf5241de1cf5fd661a6e433924650b8195270cd9d17f6af5859a4e5fa5548db4ecee5a164ba0 |
| SHA1 hash: | 8625365b67cb89d155f823857308062b979c43e6 |
| MD5 hash: | 81a8ac7c0816c21d79e6f390a1ab6016 |
| humanhash: | utah-lemon-delaware-don |
| File name: | 81a8ac7c0816c21d79e6f390a1ab6016 |
| Download: | download sample |
| Signature | Formbook |
| File size: | 739'840 bytes |
| First seen: | 2022-05-20 14:09:47 UTC |
| Last seen: | 2022-05-20 14:47:24 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 12288:na4qP2UcvTR0c00/Zn2yKWX6vl4H5U4mZNUBMvfAVL4j5ZeAQo5AltwMNVKwjygQ:a3Fcvd0c00/8sX6v8avUBKYsKAQo5AlW |
| Threatray | 15'685 similar samples on MalwareBazaar |
| TLSH | T18BF422503F8EDB26C97EB33D63BB2E640B31D7C34863C4DA6B88218B6263E554D17462 |
| 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 |  zbetcheckin |
| Tags: | 32 exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
324
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
81a8ac7c0816c21d79e6f390a1ab6016
Verdict:
No threats detected
Analysis date:
2022-05-20 15:41:36 UTC
Tags:
n/a
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
Launching a process
Сreating synchronization primitives
Searching for synchronization primitives
Reading critical registry keys
Creating a file
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Creating a file in the %temp% directory
Unauthorized injection to a recently created process
Forced shutdown of a system process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
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
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 submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
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:
2022-05-18 18:32:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
19 of 41 (46.34%)
Threat level:
5/5
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 15'675 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:formbook family:xloader campaign:p0et loader persistence rat spyware stealer suricata trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Drops file in Program Files directory
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Adds policy Run key to start application
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
13f3e02e0795dd88cc0396a1e15856609cd64931649e2bd2aa6c7e39d5315607
MD5 hash:
81a8ac7c0816c21d79e6f390a1ab6016
SHA1 hash:
8625365b67cb89d155f823857308062b979c43e6
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
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: | BitcoinAddress |
|---|---|
| Author: | Didier Stevens (@DidierStevens) |
| Description: | Contains a valid Bitcoin address |
| 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
Comments
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