MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8483aa5704bb327b07bb15cf6708fcb8a94ea7045e6d958afc41dc475bbd5517. 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


Intelligence 13 IOCs YARA File information Comments

SHA256 hash: 8483aa5704bb327b07bb15cf6708fcb8a94ea7045e6d958afc41dc475bbd5517
SHA3-384 hash: e381b3747e0460c02ed0cac266758e1adafc66b00f8f81c04d107250e66bc5667ec88bd9d6980479bd436010f59b5c31
SHA1 hash: 399a98d47285f1b5085327143e0d4de6f65ad28d
MD5 hash: 887b9a93bb82c8f190f4d607a293f721
humanhash: aspen-fourteen-item-mango
File name:887b9a93bb82c8f190f4d607a293f721.exe
Download: download sample
Signature Formbook
File size:724'480 bytes
First seen:2021-02-03 18:43:19 UTC
Last seen:2021-02-03 21:01:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:kZi9709qkIATArtDjoFs6VlkvRSCH6mo4+aNtl7Px66C5J0zfyB:kZNAlR6V+vRSCH6SXlC5iy
Threatray 3'726 similar samples on MalwareBazaar
TLSH 44F402252EFD5F52F7656FF80AB0A02457BD6A1A2865D30CCEA138DC5631FC94680FA3
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
156
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9635b065b66b75d7510bf497a9e046f4.xlsx
Verdict:
Malicious activity
Analysis date:
2021-02-03 08:59:33 UTC
Tags:
encrypted exploit CVE-2017-11882 loader 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
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
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
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 348250 Sample: bAcefnEUjb.exe Startdate: 03/02/2021 Architecture: WINDOWS Score: 100 31 www.ricardoinman.com 2->31 33 ricardoinman.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 7 other signatures 2->47 11 bAcefnEUjb.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\bAcefnEUjb.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 bAcefnEUjb.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 35 ricardoinman.com 34.102.136.180, 49759, 49760, 49761 GOOGLEUS United States 18->35 37 mateingseason.com 66.235.200.147, 49751, 80 CLOUDFLARENETUS United States 18->37 39 6 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 wlanext.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Trojan.SpyNoon
Status:
Malicious
First seen:
2021-02-03 12:24:10 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.theatomicshots.com/xle/
Unpacked files
SH256 hash:
1fa7ef7be1c4343628e13635a51011631905dd6727ca166da53c9c9765ffed8c
MD5 hash:
1d579806d94f4c43fcdd13baadeb1c32
SHA1 hash:
18b56c5c8da39428246f0d5f8e124bca9c29e032
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
8c910150c8fccb87277c1e2c877b38665b88bf005f300af808a85931044dec9a
MD5 hash:
88809d48943b0ae2834d903fa26cfa54
SHA1 hash:
fa8029836932be1f64144e4d510431069883b4be
SH256 hash:
a2a0bbbe8c9ee88441356010f63455c50dfcafe663db757bbc453c815c51d720
MD5 hash:
11e80c54bfeff7f0c120dae46df0a8be
SHA1 hash:
d597b9b0dcac06f0aa00a931bb90de8eba564651
SH256 hash:
8483aa5704bb327b07bb15cf6708fcb8a94ea7045e6d958afc41dc475bbd5517
MD5 hash:
887b9a93bb82c8f190f4d607a293f721
SHA1 hash:
399a98d47285f1b5085327143e0d4de6f65ad28d
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 8483aa5704bb327b07bb15cf6708fcb8a94ea7045e6d958afc41dc475bbd5517

(this sample)

  
Delivery method
Distributed via web download

Comments