MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 8b8fbe6805c361f5b04a198e8549a9797233faf4b9039004ebab000de593608d. 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: 13
| SHA256 hash: | 8b8fbe6805c361f5b04a198e8549a9797233faf4b9039004ebab000de593608d |
|---|---|
| SHA3-384 hash: | aa0320b42c346c7370dc0d3916825457a1ce12b22daf4c8faa606e60ac771ac93a02803408008e95632158f3c94d8b45 |
| SHA1 hash: | c72623f2a24529ae9563f8b0d5a3d5171c1a8537 |
| MD5 hash: | a6af527f30950267d700bbc88817cc3a |
| humanhash: | magnesium-kilo-idaho-summer |
| File name: | 5YfNeXk1f0wrxXm.exe |
| Download: | download sample |
| Signature | Formbook |
| File size: | 361'472 bytes |
| First seen: | 2021-01-16 07:32:55 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger) |
| ssdeep | 6144:BYhNWcLCD0fAkw4qWqVRsVQJezrcuvkNRkULHm/KkIPeamx2:BdfINwLUV4ezrcu+CU7m/KkImb |
| Threatray | 3'609 similar samples on MalwareBazaar |
| TLSH | 7B7412A375995BA3D53D0BFA6825002413FAE0BE9865E31C5CC5B2EE2617B59C323F13 |
| Reporter |  abuse_ch |
| Tags: | exe FormBook Yahoo |
abuse_ch
Malspam distributing Formbook:HELO: sonic316-54.consmr.mail.gq1.yahoo.com
Sending IP: 98.137.69.30
From: Fiona Tan <fionatan898@rocketmail.com>
Subject: Fw: REQUEST QUOTATION - URGENT
Attachment: 5YfNeXk1f0wrxXmpdf.z (contains "5YfNeXk1f0wrxXm.exe")
Intelligence
File Origin
# of uploads :
1
# of downloads :
357
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
5YfNeXk1f0wrxXm.exe
Verdict:
Malicious activity
Analysis date:
2021-01-16 07:43:07 UTC
Tags:
trojan formbook stealer
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Detection(s):
Result
Verdict:
Malware
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
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
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
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)
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Detection:
formbook
Threat name:
ByteCode-MSIL.Spyware.Noon
Status:
Malicious
First seen:
2021-01-16 07:33:08 UTC
AV detection:
13 of 45 (28.89%)
Threat level:
2/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
formbook
Similar samples:
+ 3'599 additional samples on MalwareBazaar
Result
Malware family:
xloader
Score:
10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.allismd.com/ur06/
Unpacked files
SH256 hash:
8b8fbe6805c361f5b04a198e8549a9797233faf4b9039004ebab000de593608d
MD5 hash:
a6af527f30950267d700bbc88817cc3a
SHA1 hash:
c72623f2a24529ae9563f8b0d5a3d5171c1a8537
SH256 hash:
f12580b72996a5a186b7aed68ed25bad0a8fd46fd4d3a4f3e525e470f4ba4146
MD5 hash:
9f90497bf7840212ae5b3c7621e3032d
SHA1 hash:
afe5d64e27ddf271e7c9f8967c805fb0944ddc3c
SH256 hash:
df06ca09733f8f175e9558372d1dc5eaa44ff61760e06d60a39332802cd284ab
MD5 hash:
84bfc1376148265533ea027c253e1047
SHA1 hash:
e62dc5546fbf5accb5892972b4a0dace8c8f9f8f
SH256 hash:
2d6da8b8f3dc0a41723f63995f9a8043ab5737d5ed3eca9e123b477cd47c9137
MD5 hash:
de6b4971785d04f38fed15bae81f9de6
SHA1 hash:
8184a878cd349d30ba849f91502bd7c1afe019a3
Detections:
win_formbook_g0
win_formbook_auto
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
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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