MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 93c2315009ff086b25c1000011c5097117f466d04866bebd396989b59b35835e. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments
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SHA256 hash: 93c2315009ff086b25c1000011c5097117f466d04866bebd396989b59b35835e
SHA3-384 hash: 9a2dec51087112d8745c41e962bc1945b9e718a94222d26629adbccf90e0be26e03b8a03fe5749b09fd9ae980428d7b0
SHA1 hash: 45e65b29ca5ad271813b45d9f6dbeb7d3757c19b
MD5 hash: 99aba33101be4704452087fa5d8aae9c
humanhash: orange-fix-leopard-carbon
File name:INV109870082736.exe
Download: download sample
Signature Formbook
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File size:1'089'024 bytes
First seen:2022-10-23 23:46:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:e4T3JRqmsw/5i1j1JhDicCBT5OgW+EhUBt/DxX2ZyrLq:dTDaKiDX3yTMgCSt/8y
TLSH T1E535E13026D9531DF177AF751BD478AA8BEAF7313706E46E2C910BC24716E40CDA263A
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
281
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
INV109870082736.exe
Verdict:
Malicious activity
Analysis date:
2022-10-23 23:49:44 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/689e90f8-ec27-4b37-a1dc-7f029635e1f6

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/323124/
Detection(s):
Sanesecurity.Rogue.0hr.20221024-0135.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Searching for synchronization primitives
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Reading critical registry keys
Launching the process to change network settings
Launching cmd.exe command interpreter
Forced shutdown of a system process
Unauthorized injection to a system process
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/63b3c6c1-ff9d-4802-88d0-67635380ee40
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1096098
Signature
.NET source code contains very large strings
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
System process connects to network (likely due to code injection or exploit)
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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 728739 Sample: INV109870082736.exe Startdate: 24/10/2022 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Yara detected AntiVM3 2->42 44 6 other signatures 2->44 10 INV109870082736.exe 3 2->10         started        process3 file4 30 C:\Users\user\...\INV109870082736.exe.log, ASCII 10->30 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 56 Injects a PE file into a foreign processes 10->56 14 INV109870082736.exe 10->14         started        17 INV109870082736.exe 10->17         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 19 explorer.exe 14->19 injected process8 dnsIp9 32 onstatic-pt.setupdns.net 81.88.57.70, 49696, 80 REGISTER-ASIT Italy 19->32 34 www.prequelgenetics.com 19->34 36 www.casasdosbinos.site 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 cscript.exe 19->23         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/93c2315009ff086b25c1000011c5097117f466d04866bebd396989b59b35835e/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-10-23 14:30:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
25 of 41 (60.98%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=spbdcuaj74egwjobaaabdrijoel7izwqjbtl5pjznge3lgzvqnpa._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:g47e rat spyware stealer trojan
Link:
https://tria.ge/reports/221023-3svcdsdda6/
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:
00ba906c2cbf39e9ce07fbd3c9a516919da5cf3aa6500e3896a1d8cfbe3d6ea4
MD5 hash:
febe6442602cc5df18074ff14f4eddb5
SHA1 hash:
9b9e5d212672cdbdeed7d36bf90b6f0116e70476
Detections:
FormBook
Create hunting rule
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/33668c04-1c2b-4b6a-a465-a5d130d2eb26/
Parent samples :
3c35a04edd86465c4f752711854c9bc1a902395c647067b5e88c53895654906f
737b1dfa1329a868ec8f854a6bce10cafa4e0e04d16b2e73db1e9fb29e54d2fd
93c2315009ff086b25c1000011c5097117f466d04866bebd396989b59b35835e
76c7d2803113f28e42c8421072c002e0b4bd72ecfec7e2727768931cfd328fa3
51a2542d1b273f9d3d1c1b8817d77451c46bdb03e22c7b25c05f383b289305d0
SH256 hash:
5e6c8c1240d54d133825ac94c4991d14d4dd64d546cd2cb0e53fa8f47929f32b
MD5 hash:
7a2d2f33b9428ef7ef2db6123b313370
SHA1 hash:
e59810a517f3f12daa2cfa78df7eb1283b24718e
Link:
https://www.unpac.me/results/33668c04-1c2b-4b6a-a465-a5d130d2eb26/
SH256 hash:
a327516357b9fa1a75753b3fbd0030e13f374be7cefcdf983d0b731f278b0c59
MD5 hash:
404efdeb9931733904da07f96fabeb72
SHA1 hash:
7ce363cd612f1d9a90b33ec196c4d0a49cdaee02
Link:
https://www.unpac.me/results/33668c04-1c2b-4b6a-a465-a5d130d2eb26/
SH256 hash:
93c2315009ff086b25c1000011c5097117f466d04866bebd396989b59b35835e
MD5 hash:
99aba33101be4704452087fa5d8aae9c
SHA1 hash:
45e65b29ca5ad271813b45d9f6dbeb7d3757c19b
Link:
https://www.unpac.me/results/33668c04-1c2b-4b6a-a465-a5d130d2eb26/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/93c2315009ff/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.91
Link:
https://yomi.yoroi.company/submissions/93c2315009ff086b25c1000011c5097117f466d04866bebd396989b59b35835e

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 93c2315009ff086b25c1000011c5097117f466d04866bebd396989b59b35835e

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/323124/

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