MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 19f4465b541efe4239fd64d4ced7b8b3f07e1b6b967814c73066e004155be6ae. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
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SHA256 hash: 19f4465b541efe4239fd64d4ced7b8b3f07e1b6b967814c73066e004155be6ae
SHA3-384 hash: 5e5d5b628db8f737622f9ccfc1e3b1ba95a75b3bdd16fa4b6d31d38cc7aedb2cca47a9dd109b65eb893188163aa0e1be
SHA1 hash: 041ae664341dd0c663e7ad66864cac221ef44eb9
MD5 hash: 7864fa09a6b871e46136b604e2a94cf4
humanhash: apart-iowa-seventeen-purple
File name:RFQ-31-08-2022-Doc.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:720'896 bytes
First seen:2022-09-01 08:49:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'603 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:jSqg5SXF75ev24F6LcYl7ZrC4PRjIds2qMP5OxfK35T+7c6/fy3Zw+1Iav4b:3XZ5WvF6FHrBIeMP5OkJTWc6/fg/60I
TLSH T159E4011992E58F25F97C0B7491B0A312437A7B19AC73D39E4CC4F1F45EE53228A5BA0B
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 a261f4b2bacc7192 (15 x Formbook, 10 x AgentTesla, 8 x SnakeKeylogger)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
237
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
RFQ-31-08-2022-Doc.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-09-01 09:46:58 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/1a2a7cc7-d0d1-4daa-9108-09f94c6e3892

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/307136/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1427-2.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Changing a file
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/63107250a7450371f695fa41/reports/1281e446-7787-424e-8a4a-7bdd2b270c2c/overview
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/2c569615-c270-4d39-94f5-5b4672ae8fb6
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1062594
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Initial sample is a PE file and has a suspicious name
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)
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
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 695118 Sample: RFQ-31-08-2022-Doc.pdf.exe Startdate: 01/09/2022 Architecture: WINDOWS Score: 100 42 Multi AV Scanner detection for domain / URL 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for dropped file 2->46 48 11 other signatures 2->48 7 RFQ-31-08-2022-Doc.pdf.exe 28 2->7         started        process3 dnsIp4 36 www.google.com 142.250.203.100, 443, 49753 GOOGLEUS United States 7->36 38 maps.google.com 142.250.203.110, 49750, 80 GOOGLEUS United States 7->38 40 3 other IPs or domains 7->40 28 C:\Users\user\AppData\Roaming\guKqQo.exe, PE32 7->28 dropped 30 C:\Users\user\...\guKqQo.exe:Zone.Identifier, ASCII 7->30 dropped 32 C:\Users\user\AppData\Local\...\tmp3905.tmp, XML 7->32 dropped 34 C:\Users\...\RFQ-31-08-2022-Doc.pdf.exe.log, ASCII 7->34 dropped 52 Uses schtasks.exe or at.exe to add and modify task schedules 7->52 54 Writes to foreign memory regions 7->54 56 Adds a directory exclusion to Windows Defender 7->56 58 Injects a PE file into a foreign processes 7->58 12 MSBuild.exe 7->12         started        15 powershell.exe 26 7->15         started        17 schtasks.exe 1 7->17         started        file5 signatures6 process7 signatures8 60 Modifies the context of a thread in another process (thread injection) 12->60 62 Maps a DLL or memory area into another process 12->62 64 Sample uses process hollowing technique 12->64 66 2 other signatures 12->66 19 WWAHost.exe 12->19         started        22 explorer.exe 12->22 injected 24 conhost.exe 15->24         started        26 conhost.exe 17->26         started        process9 signatures10 50 Tries to detect virtualization through RDTSC time measurements 19->50
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/19f4465b541efe4239fd64d4ced7b8b3f07e1b6b967814c73066e004155be6ae/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-08-31 03:41:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
20
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dh2emw2ud37eeop5mtkm5v5ywpyh4g3lsz4bjrzqm3qaifk342xa._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:sg94 rat spyware stealer trojan
Link:
https://tria.ge/reports/220901-krk38abafq/
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
5f03e4a3ced13c509e1bff7eef4ea91ef8fbf7558e828c31bdff2c525373d171
MD5 hash:
ba381b26613f340f0c2bc07a11811397
SHA1 hash:
df451b830bb7941326e0232b93c97d30b0177d15
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
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FormBook
Create hunting rule
Link:
https://www.unpac.me/results/6305efaf-08cf-48c9-98ec-3bdd343b1ae0/
Parent samples :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 hash:
47702c1e338af95717ee3301c3b73df0cb57d509b9521869b32a843c5ade25a1
MD5 hash:
d13b8a7019d73bb1bdf5cde9f0529e3f
SHA1 hash:
9107ba781703a9d9de65c6f4d17c002cfa7f0fe9
Link:
https://www.unpac.me/results/6305efaf-08cf-48c9-98ec-3bdd343b1ae0/
SH256 hash:
c45a3dae97e5e635a567df02635fe941af384f35cc993d4e52a57fa4f4026b3e
MD5 hash:
966c65a2893f62df72494272d810448f
SHA1 hash:
de82f765123b6ed954996603b663e9bac36acfb6
Link:
https://www.unpac.me/results/6305efaf-08cf-48c9-98ec-3bdd343b1ae0/
SH256 hash:
0e578dd5151b9c81985e52596cd1056c747ecebf70aeef94915371025172c6a1
MD5 hash:
4750cd799c1bbf7617e9ce1f7bd94841
SHA1 hash:
67f3f7e227a14d426f3f83729178e0269f1f3fc8
Link:
https://www.unpac.me/results/6305efaf-08cf-48c9-98ec-3bdd343b1ae0/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/6305efaf-08cf-48c9-98ec-3bdd343b1ae0/
SH256 hash:
19f4465b541efe4239fd64d4ced7b8b3f07e1b6b967814c73066e004155be6ae
MD5 hash:
7864fa09a6b871e46136b604e2a94cf4
SHA1 hash:
041ae664341dd0c663e7ad66864cac221ef44eb9
Link:
https://www.unpac.me/results/6305efaf-08cf-48c9-98ec-3bdd343b1ae0/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/19f4465b541e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/19f4465b541efe4239fd64d4ced7b8b3f07e1b6b967814c73066e004155be6ae

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
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 19f4465b541efe4239fd64d4ced7b8b3f07e1b6b967814c73066e004155be6ae

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/307136/

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