MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8f4718e9a80ba3c3e7bef050922a84bb4632557d46e05cc2b46d0e175f1ef95. 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: 16


Intelligence 16 IOCs YARA 2 File information Comments
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SHA256 hash: b8f4718e9a80ba3c3e7bef050922a84bb4632557d46e05cc2b46d0e175f1ef95
SHA3-384 hash: b394e7e5ebd6c0948b7a36cd1b581efbfdf7f88150c65729e13d25195a975e4538bed495a9556e43ca5afb12db586676
SHA1 hash: 585e1c878d8be07c3c279f18c51e067170f04eb6
MD5 hash: 1a8eb54321f764da542556bd21f5b988
humanhash: dakota-island-summer-ohio
File name:g357V9ZkQ2FDphr.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:634'368 bytes
First seen:2022-06-02 09:00:12 UTC
Last seen:2022-06-02 09:47:12 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 12288:4FAaZKQ7MtxCZ+cZSfQ8SAFieyB5c380pLw0oEof:4aEKQwgZUQUFmC9aL
TLSH T1FBD4F180C32BEE75F52471737924E0582724162DC1E4EA3A969CF58E30A274B29F7F5B
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 pr0xylife
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
339
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
g357V9ZkQ2FDphr.exe
Verdict:
Malicious activity
Analysis date:
2022-06-02 09:11:34 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/a49d6330-038c-4d98-93cb-b838319c8bf1

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/276282/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1364.10017.2831.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62987c63961acffe543f24b9/reports/ce9c48d7-4b6a-4e19-a6dc-a8786735ce4c/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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/09230a3a-ba89-435d-91a1-764ee3cc10ab
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1005602
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd or bat file
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/b8f4718e9a80ba3c3e7bef050922a84bb4632557d46e05cc2b46d0e175f1ef95/
Threat name:
ByteCode-MSIL.Trojan.Woreflint
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Status:
Malicious
First seen:
2022-06-02 09:01:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xd2hddu2qc5dypt354cqsivijo2ggjkx2rxaltbli3ioc5pr56kq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:formbook family:xloader campaign:smwr loader persistence rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220602-kyv7rsacbn/
Behaviour
Modifies Internet Explorer settings
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
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
Deletes itself
Reads user/profile data of web browsers
Xloader Payload
Formbook
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
Unpacked files
SH256 hash:
e12d23f1855a5cce9eb55e59f442a972cff6dbded576bcaecdb03f3b8fb977f7
MD5 hash:
adc497680f016d9ce20b5b74aa250228
SHA1 hash:
547492692299ec466c0065d6119330275bdeb47b
Detections:
win_formbook_g0
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win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ec16e21c-632d-4214-8c42-c486e58986e0/
Parent samples :
6eef88d9b2ada286ff5f0ee740bd12a593a6111f2e29e0b86cc43dc437701edf
c3d22e98a8fffa462b6924bdd9293d8f5fa31e9d95e667adba83e0d404d46ef2
01271534c6ea0137c8b7e38b66b13f34272d3196fd8e0926c2d24b3a7c4547fc
0e3a4f080d2ff0bdfa0a7e39df4982232b2d19245e6355e49940c05becfeecc5
c14b5f56387ad871d44cc3f3d9e079b2fa5bb711374aefe34f91e8d963c53dbb
b8f4718e9a80ba3c3e7bef050922a84bb4632557d46e05cc2b46d0e175f1ef95
80f508b4c73ab8ad364242a2a4e2e9f1cdf5615587e09b00b9e006731db6a993
SH256 hash:
5fb54e1b7235783545323549f7b6b743947e203658a235eae697357968d972a8
MD5 hash:
79729374f42096c424534fc8b3ea16f8
SHA1 hash:
700ad01b2c2f543f7c1736e529b8b1ceae5b09e3
Link:
https://www.unpac.me/results/ec16e21c-632d-4214-8c42-c486e58986e0/
SH256 hash:
ab00a8e5b18e11eeed47db3803f67222ba95920b689f844e93d3dab0dafa0691
MD5 hash:
2a2c54ade93059053dc21d99d0dcca01
SHA1 hash:
1e772db6cbdec91bff330b40905ea9491ff370b6
Link:
https://www.unpac.me/results/ec16e21c-632d-4214-8c42-c486e58986e0/
SH256 hash:
879c29560b21be7d9b69ca27ca4756df86e080fa3e34cb191aad5cb1e5f05504
MD5 hash:
30b6a54a992eae921a2eb8c5ea130911
SHA1 hash:
1c83f0319bffe007077c6656418c9b7344d5affe
Link:
https://www.unpac.me/results/ec16e21c-632d-4214-8c42-c486e58986e0/
SH256 hash:
b8f4718e9a80ba3c3e7bef050922a84bb4632557d46e05cc2b46d0e175f1ef95
MD5 hash:
1a8eb54321f764da542556bd21f5b988
SHA1 hash:
585e1c878d8be07c3c279f18c51e067170f04eb6
Link:
https://www.unpac.me/results/ec16e21c-632d-4214-8c42-c486e58986e0/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b8f4718e9a80/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/b8f4718e9a80ba3c3e7bef050922a84bb4632557d46e05cc2b46d0e175f1ef95

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/276282/

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