MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 81e88b5bafde17114e6a246ab744386edb0eec652a0cecf6e3a97adf70ada851. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 81e88b5bafde17114e6a246ab744386edb0eec652a0cecf6e3a97adf70ada851
SHA3-384 hash: 7b1c08c181e0b70e8eeea94e2081cc8a03fe9b76d20afc01f190469ea5bd3a79a0462ebc1c356146bda50b44d1b12b32
SHA1 hash: 7d860b26e8da1238b6595c595bc3d397912cdaa1
MD5 hash: c5b966f831a17f9957c7e453e34ad681
humanhash: solar-south-hydrogen-snake
File name:E-dekont.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:667'648 bytes
First seen:2022-08-10 14:25:34 UTC
Last seen:2022-08-10 15:03:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:JVaCR8Wbg9jqEpXz+VbMefvu/t4R9Q6iAV4AfKcpuwmbd90g/v2T0UlT8gJTGI:JAC7s9dUbcF4RSLDARpoq5tT
TLSH T174E4E115DDEA8CF9C171AB32625381B08DB36628D2E1DE11B8952A3B3F65A3DF543F01
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)
Reporter abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
2
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
E-dekont.exe
Verdict:
Malicious activity
Analysis date:
2022-08-10 14:27:48 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/4fc86226-bc12-4faa-b3fb-e6d7a216175e

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/297673/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.765.14316.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a window
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62f3c003810e2831b7347b14/reports/c9b0f857-b162-4c79-99f8-07e810ea3e0a/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/5463075c-e443-44fa-bd6e-46d65f1fca37
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1049285
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in 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)
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
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
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/81e88b5bafde17114e6a246ab744386edb0eec652a0cecf6e3a97adf70ada851/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2022-08-10 14:26:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qhuiww5p3ylrcttkervlorbyn3nq53dffigoz5xdvf5n64fnvbiq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:b29a rat spyware stealer trojan
Link:
https://tria.ge/reports/220810-rrt5fsdbg5/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
832f2de75a7c61359c363124d14a35e6c7ac0dbc3219ba1c27e3fba655f7bd68
MD5 hash:
12947d1ea5e5046712e7caf158a3f0ce
SHA1 hash:
a3502d23aec532715f890d43c77a52ab715fb66e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/96c82369-14fa-494c-b57e-fce5cea7fc60/
Parent samples :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 hash:
18eb60c0eb3e1c610526d9f4b42684ac36a2ebb521514a8770dca2f2afd7f471
MD5 hash:
7ca239778f9f46d28b08876564dba525
SHA1 hash:
973b0d0d98a83b7dfcf1bfce04a179b0f070b98c
Link:
https://www.unpac.me/results/96c82369-14fa-494c-b57e-fce5cea7fc60/
SH256 hash:
38802ce84a4ae3b062e48c280f15eb959e1b06323ae709a638b3069bb316ef85
MD5 hash:
3f34164a98613e64f7e14d48539d733a
SHA1 hash:
47e7439a135435de2a33f47084fcd37f9dfea757
Link:
https://www.unpac.me/results/96c82369-14fa-494c-b57e-fce5cea7fc60/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/96c82369-14fa-494c-b57e-fce5cea7fc60/
SH256 hash:
03fbd628a7b25c8762af59d8d1b7eb212c1d4b043a7ace35f00ffb30fec7201c
MD5 hash:
6cbced9cd35805cb67d4fafe938efc72
SHA1 hash:
21f1e47fb0334ecb076fb199bf0a9e4982575fb3
Link:
https://www.unpac.me/results/96c82369-14fa-494c-b57e-fce5cea7fc60/
SH256 hash:
81e88b5bafde17114e6a246ab744386edb0eec652a0cecf6e3a97adf70ada851
MD5 hash:
c5b966f831a17f9957c7e453e34ad681
SHA1 hash:
7d860b26e8da1238b6595c595bc3d397912cdaa1
Link:
https://www.unpac.me/results/96c82369-14fa-494c-b57e-fce5cea7fc60/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/81e88b5bafde/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/81e88b5bafde17114e6a246ab744386edb0eec652a0cecf6e3a97adf70ada851

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.

Cape
Cape
https://www.capesandbox.com/analysis/297673/

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