MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9f88ac4f3600b2aca3e1c2ffed88f336dfa6330de095b1c579feb55b500d9fe0. 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 2 File information Comments

SHA256 hash: 9f88ac4f3600b2aca3e1c2ffed88f336dfa6330de095b1c579feb55b500d9fe0
SHA3-384 hash: 4261826c55892ba291891bf9a4cf5853d21e7668858bfb73b46fe77f499eb22548b2adb2f0db31a8018a78ef364b83b4
SHA1 hash: 5e6c0fb3e6461937be5ed0339f235015a681427a
MD5 hash: 1ffe43c6112372a2e57123074f40dd96
humanhash: tennis-three-fish-football
File name:MC INV220304-2.exe
Download: download sample
Signature Formbook
File size:762'880 bytes
First seen:2022-03-16 06:18:56 UTC
Last seen:2022-03-16 08:01:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:kPwOEywCeA5Zjj9grUdFov1qUELDp/ROCkpR7DPrxi5EIWr4raf+ye0M:kPwOxbt5hjKrtQLDJ1otDPdiAyVY
TLSH T1C0F4122633E8CF52DABF6973F970511213B2F922A5DAE30DAAD414FB096375586103E3
File icon (PE):PE icon
dhash icon 80c4ececececc480 (6 x AgentTesla, 5 x Formbook, 5 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
2
# of downloads :
223
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
MC INV220304-2.exe
Verdict:
Malicious activity
Analysis date:
2022-03-16 06:28:19 UTC
Tags:
trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-03-16 06:19:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
20 of 27 (74.07%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:mts0 loader rat suricata
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
c9a43a0d7dbcb291fc2752076b2dc4275ea6d5f53defb6f22360bb452527ee00
MD5 hash:
5b8ea14227ed3d673aabbcf195792337
SHA1 hash:
20fe55a7790d7c61e6cfbcd74e8fe8d2ef37d6b5
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
4ffb59b76867dc3ee5df8b1476a82043c8bbfa9679aa90a2e4b937292b3722b8
MD5 hash:
fc6d91ff314356715f5c76ba61240c9f
SHA1 hash:
aac8291f9af1c2e18b8302550ee4d1c96120949a
SH256 hash:
601d6c3df731df4d66afe4c1c098ced465bedde893c80e532c29b1e2f2d0f89c
MD5 hash:
080a96b970ebbe1b64e54978651516eb
SHA1 hash:
5219c7eea979c5c2a1f33c31af96965e7b5fc0c2
SH256 hash:
22a8f75c42177bdbd370daf456142f6eebdc08e6a5e2c1be63bb643fdbff8927
MD5 hash:
a169689836cc86a9b5613f4b343a44b1
SHA1 hash:
1f75bdf085fc42ef0022a023c97c98c0ad23d148
SH256 hash:
9f88ac4f3600b2aca3e1c2ffed88f336dfa6330de095b1c579feb55b500d9fe0
MD5 hash:
1ffe43c6112372a2e57123074f40dd96
SHA1 hash:
5e6c0fb3e6461937be5ed0339f235015a681427a
Malware family:
XLoader
Verdict:
Malicious
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: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.

Malspam

Formbook

Executable exe 9f88ac4f3600b2aca3e1c2ffed88f336dfa6330de095b1c579feb55b500d9fe0

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

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