MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a72b08c35805f2191b29d691f93f58eb33d1c827c2fb94029f3f5d760a1af950. 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: 19


Intelligence 19 IOCs YARA 1 File information Comments
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SHA256 hash: a72b08c35805f2191b29d691f93f58eb33d1c827c2fb94029f3f5d760a1af950
SHA3-384 hash: 9b91c9bab7737a15490ed2d0876e683820281679c382f0271296e14ef2a357ffb18e27188b88687ccc8794b3e47d2e88
SHA1 hash: e5ed7622afe58cc6a8d5bb29148e7f0ff90dfe1c
MD5 hash: aed115b5a242818468a8c251e71c17e7
humanhash: washington-ack-ohio-delta
File name:LL-STITCH-20230706.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:278'576 bytes
First seen:2023-06-20 10:23:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:/Ya6xS+3ApXqLbJUzzy1Dhownu2w7iRpLTLlfeQ+bEw6X5a8T:/YDpQwizzy1DhBn87CtwpbJ6X5ak
Threatray 2'655 similar samples on MalwareBazaar
TLSH T1984413353AB6C43BFCB2073117BE07576B7AA90411B4965F2BD0EB99BD31241EA0E352
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter cocaman
Tags:exe FormBook RFQ

Intelligence

File Origin
# of uploads :
1
# of downloads :
294
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
LL-STITCH-20230706.exe
Verdict:
Malicious activity
Analysis date:
2023-06-20 10:23:59 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/e5b50dc4-950c-42c7-8ddc-fa5b6950c3a5

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/400955/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.22777.1198.2313.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a file
Unauthorized injection to a recently created process
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/91872/overview
Behaviour
MalwareBazaar
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
lolbin overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/64917e448c599a59135e14d7/reports/c1a2c8a7-8f7e-4c10-9083-03dc620d5ab5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a72b08c35805f2191b29d691f93f58eb33d1c827c2fb94029f3f5d760a1af950
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/e907741e-4e3e-4d24-b702-d0ee626754d5
Result
Threat name:
FormBook, NSISDropper, PrivateLoader
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1258230
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 dropped file
Multi AV Scanner detection for submitted file
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 FormBook
Yara detected NSISDropper
Yara detected PrivateLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 891251 Sample: LL-STITCH-20230706.exe Startdate: 20/06/2023 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic 2->38 40 Found malware configuration 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 9 other signatures 2->44 10 LL-STITCH-20230706.exe 19 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\etxnoyxz.dll, PE32 10->28 dropped 30 C:\Users\user\AppData\Local\...\nsa713F.tmp, data 10->30 dropped 54 Detected unpacking (changes PE section rights) 10->54 56 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 10->56 58 Maps a DLL or memory area into another process 10->58 60 Tries to detect virtualization through RDTSC time measurements 10->60 14 LL-STITCH-20230706.exe 10->14         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 17 explorer.exe 1 14->17 injected process8 dnsIp9 32 goyocaro.com 205.251.155.191, 49700, 80 NTHLUS United States 17->32 34 www.easysochi.ru 45.130.41.9, 49699, 80 BEGET-ASRU Russian Federation 17->34 36 3 other IPs or domains 17->36 46 System process connects to network (likely due to code injection or exploit) 17->46 21 cmmon32.exe 17->21         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/a72b08c35805f2191b29d691f93f58eb33d1c827c2fb94029f3f5d760a1af950/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2023-06-20 10:23:44 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
16 of 37 (43.24%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u4vqrq2yaxzbsgzj22i7sp2y5mz5dsbhyl5ziau7h5oxmcq27fia._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
142f8b22d894f1fee4c501acbc425edec276004d5d30ab7572cdfab85e89ad12
Formbook
1a28827929bbdf8fc02cbf542ae73de715c0b4b0e1be5c9484987ee44e652da1
Formbook
1ac8f393a04b5869cd69771e1bb1c9a6b8a895239e3ce18a62706bee4ce59d2b
Formbook
2e1feacb6a3980b6fe801af73c3eb68a60295d75e7a72fd0948091ba34a8d7d7
Formbook
35e8f730fa386dfecfb616ff20246d9eec1d6ec4d2b18f9d2e0d53032bff6b7f
Formbook
51b75048fd9a1f0f9ad1a76c1009b3db3fd14701e7ce770370fb0f6ffaa0042f
Formbook
6147af8263840617beb21652bb8db0fc7683a9e62a084254e548a884c8fa9a31
Formbook
ab080c6c62ba54b560f3feb271626ae0fe1804834f51eeac008f576f4e1299a0
Formbook
aee5d1b7326545ff692b98743e04d035e01415300fea8a5bf445d3490d6776cc
Formbook
ce902a74a974d8abadef885c3aa91a41ad495d0d22a187b0bb4c87645d3ae0a8
Formbook
+ 2'645 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:oe30 rat spyware stealer trojan
Link:
https://tria.ge/reports/230620-mfczksbd42/
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
62211785dfeb2ff9a00bf77e5175f0b2d23429a7fe52ba51a387836a68d00930
MD5 hash:
6c0bba88283d974d7ac924726ed3ab73
SHA1 hash:
7fa6dc5288c7502227bd9415911c6e0f12b6fcfb
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b0ec50cf-cf64-45d8-bfb5-6dcaad50595a/
SH256 hash:
327457ae7cbab0630b712341024fc7505d7acaac27e93e47979beebbfcfd044f
MD5 hash:
8fa397f6bb8f8d70c2c1191fca8af482
SHA1 hash:
9cb39fced216e5c52ef43e84790221c1e59d8aa0
Link:
https://www.unpac.me/results/b0ec50cf-cf64-45d8-bfb5-6dcaad50595a/
SH256 hash:
a72b08c35805f2191b29d691f93f58eb33d1c827c2fb94029f3f5d760a1af950
MD5 hash:
aed115b5a242818468a8c251e71c17e7
SHA1 hash:
e5ed7622afe58cc6a8d5bb29148e7f0ff90dfe1c
Link:
https://www.unpac.me/results/b0ec50cf-cf64-45d8-bfb5-6dcaad50595a/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a72b08c35805/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a72b08c35805f2191b29d691f93f58eb33d1c827c2fb94029f3f5d760a1af950

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

Formbook

rar a5758f619421e036e8ab2e19a147df17aaaa30efe639d75b057f3e93a922d4fa

Formbook

Executable exe a72b08c35805f2191b29d691f93f58eb33d1c827c2fb94029f3f5d760a1af950

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 a5758f619421e036e8ab2e19a147df17aaaa30efe639d75b057f3e93a922d4fa
Cape
Cape
https://www.capesandbox.com/analysis/400955/
  
Dropped by
MD5 c871f741e0683b09037427862e30ca43

Comments