MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f1a8c87268b34174fbffc2f410adeeb091629104ed587c8d6a6b413cef08b126. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1
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SHA256 hash: f1a8c87268b34174fbffc2f410adeeb091629104ed587c8d6a6b413cef08b126
SHA3-384 hash: a65ae723f9371274d2a9c0c4b111ef5f0c34b1545db16c69c4e59b4c7fd678e9d77e15bad52f88a3475bb211ddff8e9b
SHA1 hash: 5d8dee06adc145e6426eb8f3c6fde1cb334ee113
MD5 hash: 837e883f7c3ea1265541c52b778208cf
humanhash: august-speaker-carpet-aspen
File name:837e883f7c3ea1265541c52b778208cf
Download: download sample
Signature Formbook
Create hunting rule
File size:27'136 bytes
First seen:2022-05-20 13:29:53 UTC
Last seen:2022-05-20 15:48:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 384:jHbv0w1Quj4CU+WkefC8tlYw5p0HKKOBhryiiiiiiiiiiiiiiiiiElgaaaaf5JVl:Lv1QATpzllgaaas5J38q
Threatray 15'694 similar samples on MalwareBazaar
TLSH T10CC2602A5A25C058D55409BFCD11CAB8826B6D10AB7199D375EE3F3F7BB33B04B64322
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon e1e1f1b8b8b8aaaa (2 x Formbook)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
285
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
T.T SWIFT 3893572935.xlsx
Verdict:
Malicious activity
Analysis date:
2022-05-20 13:22:47 UTC
Tags:
encrypted exploit CVE-2017-11882 opendir loader formbook trojan stealer
Link:
https://app.any.run/tasks/ff181cb4-5a7c-4fa5-83e8-465939a43d1d

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/273061/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.28375.3707.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Enabling autorun by creating a file
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed
Link:
https://www.filescan.io/uploads/628797ef206e08161834daec/reports/c4535b0e-e54a-4da6-9adc-3ca98fb5a847/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:
Malicious
Link:
https://analyze.intezer.com/analyses/e8ffc028-6c9e-4cbf-acf6-6f665bfc8f11
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/998624
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 domain / URL
Multi AV Scanner detection for dropped file
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
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 631124 Sample: WfMfXJYfU5 Startdate: 20/05/2022 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic 2->45 47 Multi AV Scanner detection for domain / URL 2->47 49 Found malware configuration 2->49 51 12 other signatures 2->51 10 WfMfXJYfU5.exe 15 7 2->10         started        process3 dnsIp4 41 darley.ml 192.185.174.178, 49738, 80 UNIFIEDLAYER-AS-1US United States 10->41 43 192.168.2.1 unknown unknown 10->43 35 C:\Users\user\AppData\Roaming\...\Bomllx.exe, PE32 10->35 dropped 37 C:\Users\user\...\Bomllx.exe:Zone.Identifier, ASCII 10->37 dropped 39 C:\Users\user\AppData\...\WfMfXJYfU5.exe.log, ASCII 10->39 dropped 53 Creates an undocumented autostart registry key 10->53 55 Writes to foreign memory regions 10->55 57 Allocates memory in foreign processes 10->57 59 Injects a PE file into a foreign processes 10->59 15 MSBuild.exe 10->15         started        18 MSBuild.exe 10->18         started        20 cmd.exe 1 10->20         started        file5 signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 22 explorer.exe 15->22 injected 75 Tries to detect virtualization through RDTSC time measurements 18->75 24 conhost.exe 20->24         started        26 timeout.exe 1 20->26         started        process9 process10 28 colorcpl.exe 22->28         started        signatures11 61 Modifies the context of a thread in another process (thread injection) 28->61 63 Maps a DLL or memory area into another process 28->63 65 Tries to detect virtualization through RDTSC time measurements 28->65 31 cmd.exe 1 28->31         started        process12 process13 33 conhost.exe 31->33         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/f1a8c87268b34174fbffc2f410adeeb091629104ed587c8d6a6b413cef08b126/
Threat name:
Win32.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-05-20 13:05:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6gumq4tiwnaxj677yl2bblpowciwfeie5vmhzdlknnatz3yiweta._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
15b2c81fed8edbe2ae672f0def763334464e1878e06330f209daecc133995a1f
Formbook
1799e80fe0e05e3e784de5536df1713309a3b345ea3dbd920acfff477735afbd
Formbook
2fce5c6cd34933c0811963c7333c9ba463632ef7ba87f7140686f833b8cb8a6a
Formbook
4464483a19cb1ad8b1bac91be04eaf972807cdb48f10b1fc5b675563ba1fe350
Formbook
895ef47b4da61470f4ba9c87d131b1f74adfea16dd6162e5bca0eee391d0a6f4
Formbook
9af7966457a612505ab014eabf6eb8e96a09bdc6b248816506271fc554473197
Formbook
f5e1e8da9d4851458ac58902851655cf303ec05cfb4406f49217e8e5235986f7
Formbook
fb06049dcdd486e04893bebfc6cb38566c2045f209322d28b5f5310c8675db8d
Formbook
+ 15'684 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220520-qrs2qadhc8/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f1a8c87268b34174fbffc2f410adeeb091629104ed587c8d6a6b413cef08b126
MD5 hash:
837e883f7c3ea1265541c52b778208cf
SHA1 hash:
5d8dee06adc145e6426eb8f3c6fde1cb334ee113
Link:
https://www.unpac.me/results/483075f6-3571-4eb3-8ca2-ea8cc0836c9d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f1a8c87268b3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/f1a8c87268b34174fbffc2f410adeeb091629104ed587c8d6a6b413cef08b126

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
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe f1a8c87268b34174fbffc2f410adeeb091629104ed587c8d6a6b413cef08b126

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/273061/
  
URLhaus
https://urlhaus.abuse.ch/url/2204013/

Comments


Avatar
zbet commented on 2022-05-20 13:30:00 UTC

url : hxxp://192.210.240.32/o/yyy.exe