MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 15e4f50b213a1cc5545dd4a173eabfed7f2ea6019117fdc374ef1514632bdb55. 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: 10


Intelligence 10 IOCs YARA 4 File information Comments
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SHA256 hash: 15e4f50b213a1cc5545dd4a173eabfed7f2ea6019117fdc374ef1514632bdb55
SHA3-384 hash: df435016c8bc46305bffcde0e0938fea2e44593f7d31cef9bd4156cde33add98219fb2a274d168339e98896746598494
SHA1 hash: a03043c0b6da1c402c75baefa91fba661a959834
MD5 hash: 4a3acfa1518e480875319c0b26f6582b
humanhash: sodium-quiet-foxtrot-helium
File name:Invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:407'552 bytes
First seen:2021-12-02 11:18:03 UTC
Last seen:2021-12-02 13:03:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 6144:52m2kQqvZRHUvatejSnXXsERarok6FCDwJAoU6Cq4POw9HJeSVfyWL:SGSyXcEccncDfoU6cPOw98st
Threatray 12'000 similar samples on MalwareBazaar
TLSH T1FE84F147369091F2E43C2933BE43E81E26532CF4ED60D209B793F65B29726B25E506B7
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
157
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Invoice.exe
Verdict:
Suspicious activity
Analysis date:
2021-12-02 11:19:58 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/5371a787-7816-4f8f-a124-fdc4da326a4e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/210667/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1125.22528.1184.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
DNS request
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61a8ab6ef9d950eb11b68967/reports/6e07fa9a-aa0c-4028-819b-dd0172837c9f/overview
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:
Unknown
Link:
https://analyze.intezer.com/analyses/ea78cc80-7592-45c5-bca5-c438525c4695
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/900067
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Self deletion via cmd delete
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
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 532545 Sample: Invoice.exe Startdate: 02/12/2021 Architecture: WINDOWS Score: 100 35 www.starfitnessequipment.com 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 8 other signatures 2->49 11 Invoice.exe 3 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\Invoice.exe.log, ASCII 11->33 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 15 Invoice.exe 11->15         started        18 Invoice.exe 11->18         started        20 Invoice.exe 11->20         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 22 explorer.exe 15->22 injected process9 dnsIp10 37 www.clararsjajno.quest 37.123.118.150, 49781, 49813, 80 UK2NET-ASGB United Kingdom 22->37 39 www.bjhyc.net 54.38.220.85, 49815, 80 OVHFR France 22->39 41 11 other IPs or domains 22->41 51 System process connects to network (likely due to code injection or exploit) 22->51 26 control.exe 22->26         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 26->53 55 Modifies the context of a thread in another process (thread injection) 26->55 57 Maps a DLL or memory area into another process 26->57 59 Tries to detect virtualization through RDTSC time measurements 26->59 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/15e4f50b213a1cc5545dd4a173eabfed7f2ea6019117fdc374ef1514632bdb55/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-02 11:19:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cxspkczbhiomkvc52sqxh2v75v7s5jqbsel73q3u54kriyzl3nkq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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19428f9c431fb0f8d6fbd9ca194589bacf9d9d3e475717031373b71982bea2a5
Formbook
47e997e572407a3a805deaa7e7bca8d20990f23901c7199f1add2e550763dbf5
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733d497a01920cda976dbb7008a4bbf8f1ad7e2e6935a72ac16c060f0beffc5e
Formbook
7415f5e7f8ae4514ca13ec7ae4e3b4005e93c63eaba82d03048de5f60eb784fa
Formbook
ad7117e7b38bd79d672590054fda19c333f8595c42f5b82ab237781b305fb2f8
Formbook
d78094f3b6eac87e2d4249671bdc4e044afb31e2e78aac8f2db7186c6d5b6db1
Formbook
dce5f044b1f4396f33c3574667169dcbdeb3aebb037c9f53d7a8c38e095f576d
Formbook
+ 11'990 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:ecus loader rat
Link:
https://tria.ge/reports/211202-neanhaaea5/
Behaviour
Gathers network information
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
Malware Config
C2 Extraction:
http://www.ptintelligence.com/ecus/
Unpacked files
SH256 hash:
1eba3e6e55f4aa87ee88dad11183f808f00870bf6277e3ae19fb31400a1dbe5b
MD5 hash:
00b620728472aef2af115e0455930cf8
SHA1 hash:
649a4ad0f13a3176ea36b855c1b36fbce246446a
Link:
https://www.unpac.me/results/fbe1a63b-8d65-4b2c-8348-0175f4e76051/
SH256 hash:
8ef92009d81e67a1e3c60dabcaa6af982be349139512ee23ebaf0d0bb8f13643
MD5 hash:
f9828d2e8959aa853e8bff45d0403583
SHA1 hash:
29558470fc7d98dd44887639233843084d11e15c
Link:
https://www.unpac.me/results/fbe1a63b-8d65-4b2c-8348-0175f4e76051/
SH256 hash:
15e4f50b213a1cc5545dd4a173eabfed7f2ea6019117fdc374ef1514632bdb55
MD5 hash:
4a3acfa1518e480875319c0b26f6582b
SHA1 hash:
a03043c0b6da1c402c75baefa91fba661a959834
Link:
https://www.unpac.me/results/fbe1a63b-8d65-4b2c-8348-0175f4e76051/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/15e4f50b213a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.38
Link:
https://yomi.yoroi.company/submissions/15e4f50b213a1cc5545dd4a173eabfed7f2ea6019117fdc374ef1514632bdb55

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
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Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 15e4f50b213a1cc5545dd4a173eabfed7f2ea6019117fdc374ef1514632bdb55

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/210667/

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