MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 18b7d102ed7c43b96306fcf3616a4e96add77a7d2c55296dd059f974ef8ddcf5. 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 3 File information Comments
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SHA256 hash: 18b7d102ed7c43b96306fcf3616a4e96add77a7d2c55296dd059f974ef8ddcf5
SHA3-384 hash: 623de7cc65ceb2ea02c8e5b916cc114ab01f9198cb541db71e16082c8f365a214ae1da28f63a4fd7cef997f7b6981c34
SHA1 hash: 4693437d5c29099d69e26f794a312fb475155cb2
MD5 hash: 2b60409d0b8a3e063cb2292e9b09c072
humanhash: blossom-river-equal-freddie
File name:Transfer application.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:841'216 bytes
First seen:2021-08-12 06:02:00 UTC
Last seen:2021-08-12 13:10:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:T/HK7z5v0rzv23iNLnKZYn18ue2A78LZC5bhe8UZt4UbRZ4JDk8JOYMUWXb5pQVQ:udvd3iN0YOuhAgeb48UjBdS7
Threatray 7'638 similar samples on MalwareBazaar
TLSH T1CE05CF9D32A076EFD857C972CA641C60EBA5B4B7871BC247901705ADDE0E98BCF106F2
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
283
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ab.exe
Verdict:
Malicious activity
Analysis date:
2021-08-12 01:31:55 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/288876a4-22e5-4938-b3c5-55c6f624522d

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/178446/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.993-1.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20210812-0112.UNOFFICIAL
Create hunting rule

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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/52bd185a-8b12-4abd-9b93-fbc5c8de3617
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/831437
Signature
C2 URLs / IPs found in malware configuration
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)
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
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 463864 Sample: Transfer application.exe Startdate: 12/08/2021 Architecture: WINDOWS Score: 100 33 www.inverservi.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 Transfer application.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\...\Transfer application.exe.log, ASCII 11->31 dropped 59 Injects a PE file into a foreign processes 11->59 15 Transfer application.exe 11->15         started        18 Transfer application.exe 11->18         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 20 explorer.exe 15->20 injected process9 dnsIp10 35 lknstump.com 160.153.136.3, 49765, 49772, 80 GODADDY-AMSDE United States 20->35 37 www.livingstonpistolpermit.com 208.92.209.208, 49759, 80 ENTERHOST-ASUS United States 20->37 39 13 other IPs or domains 20->39 49 System process connects to network (likely due to code injection or exploit) 20->49 51 Uses netstat to query active network connections and open ports 20->51 24 NETSTAT.EXE 20->24         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 24->53 55 Maps a DLL or memory area into another process 24->55 57 Tries to detect virtualization through RDTSC time measurements 24->57 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/18b7d102ed7c43b96306fcf3616a4e96add77a7d2c55296dd059f974ef8ddcf5/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-12 01:51:38 UTC
AV detection:
14 of 46 (30.43%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dc35caxnprb3syyg7tzwc2sos2w5o6t5frkss3oqlh4xj34n3t2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
6931c7d4ab556ccd3cee7b8ddc9107f73551dd8cf5f293ec88d0ded26f52a9f6
Formbook
6afa5e287f69f392b8481a94ebb1729c606a1f1023820e79e942ad40dfe96859
Formbook
790898f9518c146e7ffa430b975ee0f5bc162b6b5a5dba008e0572741312bc19
Formbook
7c071823d86f7f37eb038add1e274db23c722612d74602e11496d0b4e312103a
Formbook
81cbdffd1b44ca983180456d058b8eaadf51adbd19600dbbde68be7a4ef09a54
Formbook
c6a1a1a68b5faac43930deeab9cd6745bde62869786e21e0681b3dc0973afa80
Formbook
+ 7'628 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:m6b5 loader rat suricata
Link:
https://tria.ge/reports/210812-3rkd951pka/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.inverservi.com/m6b5/
Unpacked files
SH256 hash:
3d7aebc5f0493c028605673f6114e2340a528b3b485f84896e33688e470089f8
MD5 hash:
c09f91c4935fabda697e9435f0b6c18e
SHA1 hash:
43d58aa0c78c8025d7d3b494739a9b4acb7a9500
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ecc2c0b5-e88a-495b-bfc6-b01f9b73e90c/
Parent samples :
3ad516ed1d59d2a83e03dd014de474999c1d20885639cd2f77c1108c636636df
81cbdffd1b44ca983180456d058b8eaadf51adbd19600dbbde68be7a4ef09a54
6afa5e287f69f392b8481a94ebb1729c606a1f1023820e79e942ad40dfe96859
1bc91158db7c9edb77fa2d26fda6efd017b8aa70c3bc68d5542059e3f44b9e77
7c071823d86f7f37eb038add1e274db23c722612d74602e11496d0b4e312103a
ffb4062f3105628be393872c098765b9a7736911cb8fee4ff571b006a891c8a8
18b7d102ed7c43b96306fcf3616a4e96add77a7d2c55296dd059f974ef8ddcf5
SH256 hash:
7862455be5525091f127c9e9eb9b075d3feb38355b4363ec7d1c9c76fd4a4faa
MD5 hash:
a3eb68a402ec05a6a6424c225133b24b
SHA1 hash:
d21e186e787b8b7d4d3bce1585fc2088055127c7
Link:
https://www.unpac.me/results/ecc2c0b5-e88a-495b-bfc6-b01f9b73e90c/
SH256 hash:
ed0dd1e2260da7b03c8b80e0b45e8fef44be722c1e8c41e078c1a25ed0d18ecc
MD5 hash:
6057ce35bd926dd6d49dedfa9cc18372
SHA1 hash:
1f4e44e1740ffbd91129ac3a37d22845bc52c158
Link:
https://www.unpac.me/results/ecc2c0b5-e88a-495b-bfc6-b01f9b73e90c/
SH256 hash:
18b7d102ed7c43b96306fcf3616a4e96add77a7d2c55296dd059f974ef8ddcf5
MD5 hash:
2b60409d0b8a3e063cb2292e9b09c072
SHA1 hash:
4693437d5c29099d69e26f794a312fb475155cb2
Link:
https://www.unpac.me/results/ecc2c0b5-e88a-495b-bfc6-b01f9b73e90c/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.54
Link:
https://yomi.yoroi.company/submissions/18b7d102ed7c43b96306fcf3616a4e96add77a7d2c55296dd059f974ef8ddcf5

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
Create hunting rule
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 18b7d102ed7c43b96306fcf3616a4e96add77a7d2c55296dd059f974ef8ddcf5

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/178446/

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