MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 7a975e0983903a474303dfbab00a6ccd3a5f9f3339fb1d756aa36f5172361e7c. 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: 9
| SHA256 hash: | 7a975e0983903a474303dfbab00a6ccd3a5f9f3339fb1d756aa36f5172361e7c |
|---|---|
| SHA3-384 hash: | 2d8ea9e1459c114bc98da83e9cbed579c01d2bb65c3afa8d9765908b9d19dbcee00ba7d6cca9c642c20778b7da559c5c |
| SHA1 hash: | 8fefb192e7b649e7851bc6dfc9bb98cf080e939d |
| MD5 hash: | e7ed517edb255b2b0b90165552d7f12d |
| humanhash: | steak-emma-india-speaker |
| File name: | 280322028656,pdf.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 1'241'600 bytes |
| First seen: | 2022-03-28 12:55:03 UTC |
| Last seen: | 2022-03-28 13:42:57 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger) |
| ssdeep | 24576:hEEr9BJwWUsBM5vepem8Jqi+5HPqYhwMfLBis:59BG/sB/aqpTwMfLZ |
| Threatray | 11'891 similar samples on MalwareBazaar |
| TLSH | T136454B71F7F62ED6F1AA06B7A731744C83373D6A56B991CE0484374824703A66EB0B27 |
| File icon (PE): |  |
| dhash icon | e4a4a48c96b2f074 (22 x AgentTesla, 8 x Formbook, 5 x SnakeKeylogger) |
| Reporter |  GovCERT_CH |
| Tags: | exe FormBook |
Intelligence
File Origin
# of uploads :
2
# of downloads :
227
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Adding an access-denied ACE
Using the Windows Management Instrumentation requests
Launching a process
Сreating synchronization primitives
Sending a custom TCP request
Searching for synchronization primitives
Creating a file
Launching cmd.exe command interpreter
DNS request
Sending an HTTP GET request
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
anti-vm control.exe obfuscated packed replace.exe
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Signature
.NET source code references suspicious native API functions
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Found malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
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)
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
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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.Generic
Status:
Suspicious
First seen:
2022-03-28 13:10:34 UTC
AV detection:
14 of 26 (53.85%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 11'881 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:xloader campaign:p8mc evasion loader rat suricata
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
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:
7a975e0983903a474303dfbab00a6ccd3a5f9f3339fb1d756aa36f5172361e7c
MD5 hash:
e7ed517edb255b2b0b90165552d7f12d
SHA1 hash:
8fefb192e7b649e7851bc6dfc9bb98cf080e939d
Malware family:
XLoader
Verdict:
Malicious
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: | malware_Formbook_strings |
|---|---|
| Author: | JPCERT/CC Incident Response Group |
| Description: | detect Formbook in memory |
| Reference: | internal research |
| Rule name: | pe_imphash |
|---|
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
| Rule name: | win_formbook_auto |
|---|---|
| Author: | Felix Bilstein - yara-signator at cocacoding dot com |
| Description: | Detects win.formbook. |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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