MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac7961170a9fe0e160128385adfc20e8c770244ef7aa4de192f34ec0d6aa5f56. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac7961170a9fe0e160128385adfc20e8c770244ef7aa4de192f34ec0d6aa5f56
SHA3-384 hash: 5a85465492da70bc265fd7a0207394a2ce7cde825d60af0025117ead9cdeb31b16bc48db3070216c65402bb3ebd0a00e
SHA1 hash: b7dd9d729350987cb9e5b808b81b44905972c559
MD5 hash: 79e83c704483c6e0717ac7ceaf5c8145
humanhash: earth-victor-connecticut-nevada
File name:79e83c704483c6e0717ac7ceaf5c8145.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'264'640 bytes
First seen:2022-05-02 18:10:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:a3xxPj1citExU/gg3OKxNJRlxqZ633HxqkEYB:KxxtExU/gg3Ou8Z633HxqkEYB
Threatray 17'583 similar samples on MalwareBazaar
TLSH T14345E0D2FA1050F1DC7A8477BA37C8B527766C6E82E8A98258D43F4338B5672C627C07
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 e0c4a696969ac4f0 (13 x Formbook, 1 x GuLoader)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
79e83c704483c6e0717ac7ceaf5c8145.exe
Verdict:
Suspicious activity
Analysis date:
2022-05-02 18:23:34 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4377e6b6-9856-4805-9c01-3878a7c0813a

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/268267/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.Nanocore.VAUF.MTB.10112.1640.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated
Link:
https://www.filescan.io/uploads/62701ed362b1ae4451cd53f1/reports/6e197e8b-48da-45e9-a037-0f82f4e48296/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f3072adb-e9fd-48c2-9ce2-8d029a51a85f
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/986688
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Self deletion via cmd delete
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:
xloader
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Link:
https://mwdb.cert.pl/sample/ac7961170a9fe0e160128385adfc20e8c770244ef7aa4de192f34ec0d6aa5f56/
Threat name:
ByteCode-MSIL.Backdoor.NanoCore
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Status:
Malicious
First seen:
2022-05-02 16:30:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
25
AV detection:
23 of 41 (56.10%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5a6ac40a3c393c4a3feff2030b34b6493215f0e855588f585fdb768529a3deae
Formbook
72f46c69df5dad8bc33c6d7ca8ae68b8a679447f8809ef3bbd63ce16af445530
Formbook
af8fd10b749ea99db1bb4a6a2d7ee79f6b03726b2866a652f8bade94d83440b8
Formbook
d4056dd6353372ee5a5e61844456171df8def439067395b74d20d7c300adbcaa
Formbook
ddb292ac2c57e10703a5358532be2d46e4d5ea94361fd30be3c1e2bfb919621f
Formbook
e932695b2e7c04d9e57d7e5e0f3e928898621bcc8657c9d3203b9383c640a325
Formbook
+ 17'573 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:s2q8 loader rat
Link:
https://tria.ge/reports/220502-wsl8fsfahr/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
027c0a52cc1b1e267c88413fc1dae1aabd8e293dc7b5525b5fb5133671b34f26
MD5 hash:
424d5dd0141a4fe3f887477887384945
SHA1 hash:
03593a3e150ad4c2984f7c672afe386e8715ed1e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f7f52207-bb8a-44ab-a533-9f4a96138fd1/
Parent samples :
ac7961170a9fe0e160128385adfc20e8c770244ef7aa4de192f34ec0d6aa5f56
f68f8578cd443c77670f46bc7ba4b3d95429862fbf8c86d6e4b0fd306c3db68a
951e9298cd5a412885d910e11c0e791fec94f0e94a60f4d347d1747917c6eed9
1a71a22a516a4181b4e5b954e802896bae168789bbefa6f359be7da386c2eef9
e473eec04a43a280723367337e0ff1083ed5f7dea858173dff9ff4c6c8a89029
f2fc5ff52f83f6666ac482a4e7f4a43ae1ce1a33f482337d8d1f8c75c60e8dfb
fed1f0c660904ecb7465c29594741e048485c6bdd792f8b745e9f12a9b40367f
0e1bf822663f3c819fa79746f35b364d8d1886a6dd406011eb8c79ff9a5edb03
bef0d9edea1dd55695f0490efa9a9dfaefeff5154dc56f407391781dc7e0ed4c
82f980f9c0e7dffaff12f27756975e9e551f2ffd432d6854d37106adb27ec0ae
SH256 hash:
338e29a6b4ad47cc207ccec75aa8d144bd638f2f8fb05750883489f7476ba4c7
MD5 hash:
17f8feaff48fce4fc518b83afea16651
SHA1 hash:
70477523115ed9e8e984d5743711d290c2a0f46e
Link:
https://www.unpac.me/results/f7f52207-bb8a-44ab-a533-9f4a96138fd1/
SH256 hash:
4a4173b653c9cb6848b2b361a9d73a9d2eaf6d1a9f4e39205609ae930e3b90dd
MD5 hash:
96432dbb0cef77be16a4f57a1e1fe092
SHA1 hash:
48d1eb6f263640a6258bfd59c8c8e55c23fb79af
Link:
https://www.unpac.me/results/f7f52207-bb8a-44ab-a533-9f4a96138fd1/
SH256 hash:
474bba0869dde2977609220b6b600b3ac0dc69bcf49c18a9bfed97836e463363
MD5 hash:
2e23fe3e94545a97387edd0c1493075c
SHA1 hash:
08cafc858a4916fcdb009df96f9d64275f766324
Link:
https://www.unpac.me/results/f7f52207-bb8a-44ab-a533-9f4a96138fd1/
SH256 hash:
ac7961170a9fe0e160128385adfc20e8c770244ef7aa4de192f34ec0d6aa5f56
MD5 hash:
79e83c704483c6e0717ac7ceaf5c8145
SHA1 hash:
b7dd9d729350987cb9e5b808b81b44905972c559
Link:
https://www.unpac.me/results/f7f52207-bb8a-44ab-a533-9f4a96138fd1/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac7961170a9f/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/ac7961170a9fe0e160128385adfc20e8c770244ef7aa4de192f34ec0d6aa5f56

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.

Web download

Formbook

Executable exe ac7961170a9fe0e160128385adfc20e8c770244ef7aa4de192f34ec0d6aa5f56

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2158313/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/268267/

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