MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689. 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 3 File information Comments
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SHA256 hash: 58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689
SHA3-384 hash: 201568a1eb544d13d956dd261ab52451e564a9267f64f47bfeb8d94174430671dc9275de56e8d661965b1e4a887d4a4b
SHA1 hash: 78b52eca5a0ebdb6e85fc421006ca8099dbe45de
MD5 hash: 371f3d002848574bb9dd26f4aa9c23e0
humanhash: mike-five-papa-bacon
File name:file.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:663'040 bytes
First seen:2023-12-06 16:20:48 UTC
Last seen:2023-12-06 18:25:09 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:7YtEQaueH5qBuXvhLM0IJNPc5vI8yffOY27FN+J4aRtxiQofyq4Wz2ea:MtoqButOJNPbfff2J0Vv+2
TLSH T1B0E4E0AD725075EFC867D9729DA82C60FA21A4BB530BD203A01715ED9E0DA87CF245F3
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 480013cccc553380 (15 x AgentTesla, 5 x SnakeKeylogger, 5 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
306
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/462904/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65709f75855eb2633d619682/reports/aed7a36d-c1bd-4857-97ad-a3eff70f500d/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/a5008f49-fd04-460f-9c91-2d4df413b4d3
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1354716
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1354716 Sample: file.exe Startdate: 06/12/2023 Architecture: WINDOWS Score: 100 36 www.berita138brand.xyz 2->36 38 www.zneckhp.site 2->38 40 10 other IPs or domains 2->40 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 52 10 other signatures 2->52 11 file.exe 3 2->11         started        signatures3 50 Performs DNS queries to domains with low reputation 36->50 process4 signatures5 60 Detected unpacking (changes PE section rights) 11->60 62 Detected unpacking (overwrites its own PE header) 11->62 64 Tries to detect virtualization through RDTSC time measurements 11->64 14 file.exe 11->14         started        process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 14->66 68 Maps a DLL or memory area into another process 14->68 70 Sample uses process hollowing technique 14->70 72 Queues an APC in another process (thread injection) 14->72 17 explorer.exe 38 1 14->17 injected process8 dnsIp9 30 www.peenetic.com 195.78.66.148, 80 SUPERHOST-PL-ASPL Poland 17->30 32 www.hnxuefengyuan.com 154.197.50.17, 49724, 80 SONDERCLOUDLIMITED-AS-APSonderCloudLimitedHK Seychelles 17->32 34 5 other IPs or domains 17->34 42 System process connects to network (likely due to code injection or exploit) 17->42 21 colorcpl.exe 12 17->21         started        24 autoconv.exe 17->24         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 21->54 56 Maps a DLL or memory area into another process 21->56 58 Tries to detect virtualization through RDTSC time measurements 21->58 26 cmd.exe 1 21->26         started        process13 process14 28 conhost.exe 26->28         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689/
Threat name:
Win32.Trojan.Swotter
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Status:
Malicious
First seen:
2023-12-06 05:56:16 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
15 of 23 (65.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ldhuhf46qfiim3p6maw64c2ufa3vafsnzgyxnglhmxsnqrrx22eq._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:uh23 rat spyware stealer trojan
Link:
https://tria.ge/reports/231206-ttmt9sed2t/
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
692e04be13ed65ac3644f244585cd4f2a96453beb71095a3f3e99b03e3733c69
MD5 hash:
59e894fc4208d84dfe99740f40f15a6a
SHA1 hash:
00645401d717ec67f0f3edae06c0ff41c48e187b
Detections:
FormBook
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win_formbook_w0
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win_formbook_auto
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win_formbook_g0
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Formbook
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Link:
https://www.unpac.me/results/6d43bb0a-2f59-4eca-8fe9-780172bc49f2/
Parent samples :
e6ad0e54bdd3ceb24a7139747c35bb9e9b2d5a8208b677562b87be8745033d7d
10883d2d817a21862f9068a7fbaae0d363e16e64d291a291925ba002e761eff6
33ff334a0bf2e8a1e899ff47a87edf30e6e8ebf05ce6fc5a1d6e7a7b5bd672df
cc3e1fee438ef0fe104afcc8ac66f930074302f67f1b99995b2d526575ddc098
58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689
c8d59b8da8897c734505e6464da594ecfc745ca1ee00a8d0c536646baee2f84d
9d833b4a66beca22dcee2a030ffa0ff1a9c72eba3f9ee50eb412f56806915f87
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
Link:
https://www.unpac.me/results/6d43bb0a-2f59-4eca-8fe9-780172bc49f2/
SH256 hash:
2cfdf39f6ba085b5038fc900b8001e5a3990375c6c6d481651f06cf6a3639b15
MD5 hash:
4dab9a6222bd26cc014e8615e83ca836
SHA1 hash:
c69c652326e76ac828882c12513be0c07fddc8b7
Link:
https://www.unpac.me/results/6d43bb0a-2f59-4eca-8fe9-780172bc49f2/
SH256 hash:
beb14bea0f6cb615fe14fd4a0bc789accfb968121645166be2e2b1fb39ccd130
MD5 hash:
0cb6cb01b3e4ebe88f40cd34fa8f187e
SHA1 hash:
1df2cca6c7bec339770b6dd29990cf7b5b9930b6
Link:
https://www.unpac.me/results/6d43bb0a-2f59-4eca-8fe9-780172bc49f2/
SH256 hash:
58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689
MD5 hash:
371f3d002848574bb9dd26f4aa9c23e0
SHA1 hash:
78b52eca5a0ebdb6e85fc421006ca8099dbe45de
Link:
https://www.unpac.me/results/6d43bb0a-2f59-4eca-8fe9-780172bc49f2/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/58cf43979e81/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/58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689

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:NET
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Author:malware-lu
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.

Malspam

Formbook

Executable exe 58cf43979e8150866dfe602dee0b54283750164dc9b176996765e4d84637d689

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/462904/

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