MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec. 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: 18


Intelligence 18 IOCs YARA 3 File information Comments
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SHA256 hash: 02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec
SHA3-384 hash: 6ff99239ce13b2ee7c07a771137642b2810acfdf33798e36ceee3598c8a6e381de36fea0aac38c3bac984ba56c0590e0
SHA1 hash: f3466f9e8e6d1c9e9d22e6fe9e2ee601d9c22788
MD5 hash: 2673a176c9729737316a6e6d660f0f79
humanhash: video-cup-connecticut-delta
File name:Invoice#23615B001.exe
Download: download sample
Signature Formbook
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File size:657'920 bytes
First seen:2023-09-26 06:08:12 UTC
Last seen:2023-09-26 06:39:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:KayccWwjCUqEupAtlUpQSkHBkiyrhKwAKNdI0U+VRslA7jbA:0CdEupkl4RmkvyeI0TR17j
Threatray 1'762 similar samples on MalwareBazaar
TLSH T1BFE4CF1631EA1616F426E7F30BABFD8587FEF3F2532EF6297D86168680D1900DA02135
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter cocaman
Tags:exe FormBook INVOICE

Intelligence

File Origin
# of uploads :
2
# of downloads :
283
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
Invoice#23615B001.exe
Verdict:
Malicious activity
Analysis date:
2023-09-26 06:10:29 UTC
Tags:
formbook xloader stealer spyware
Link:
https://app.any.run/tasks/34e3bf98-5bb3-4a34-b32b-2aaea1640fd2

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/451156/
Detection(s):
Sanesecurity.Rogue.0hr.20230925-1934.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6512758183a0c6425dff98b2/reports/2e37ab36-32d1-4cb2-9175-8fe18e38f7da/overview
Verdict:
Malicious
Labled as:
Trojan.Olock.Generic
Link:
https://www.hybrid-analysis.com/sample/02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec
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/24d531f1-b0f7-446d-aee5-08fcdf4f26d2
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1314273
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 domain / URL
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 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: 1314273 Sample: Invoice#23615B001.exe Startdate: 26/09/2023 Architecture: WINDOWS Score: 100 35 Snort IDS alert for network traffic 2->35 37 Multi AV Scanner detection for domain / URL 2->37 39 Found malware configuration 2->39 41 12 other signatures 2->41 10 Invoice#23615B001.exe 3 2->10         started        process3 signatures4 49 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->49 51 Tries to detect virtualization through RDTSC time measurements 10->51 53 Injects a PE file into a foreign processes 10->53 13 Invoice#23615B001.exe 10->13         started        process5 signatures6 55 Modifies the context of a thread in another process (thread injection) 13->55 57 Maps a DLL or memory area into another process 13->57 59 Sample uses process hollowing technique 13->59 61 Queues an APC in another process (thread injection) 13->61 16 explorer.exe 4 4 13->16 injected process7 dnsIp8 27 ha-ppy.happy-sljfs-iiuiuwoe.com 154.83.31.15, 49821, 80 RBNETRBNETCoLtdJP Seychelles 16->27 29 www.yoywvfw.top 154.195.84.121, 49820, 80 PEGTECHINCUS Seychelles 16->29 31 14 other IPs or domains 16->31 33 System process connects to network (likely due to code injection or exploit) 16->33 20 cmd.exe 16->20         started        signatures9 process10 signatures11 43 Modifies the context of a thread in another process (thread injection) 20->43 45 Maps a DLL or memory area into another process 20->45 47 Tries to detect virtualization through RDTSC time measurements 20->47 23 cmd.exe 1 20->23         started        process12 process13 25 conhost.exe 23->25         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec/
Threat name:
Win32.Trojan.Znyonm
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Status:
Malicious
First seen:
2023-09-25 15:14:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=aklrwa4ogispxcnfvkbezvbyrkzrbdugk4jrfujh4mvwuwnrwpwa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0ef8690ac5fbda00640852fe323d69dcc7df51d9a367070500d37529148a37df
Formbook
28b0099eef5f5d332587f51c404eaf582423c6ff199a4d6f41e7428f92245a41
Formbook
48e030cc0ca1af0e027949d1f16b86226e352065d9bf5eba4ca7719efe61b0cf
Formbook
64d5f2975203999e9e2411f8772d9f41c6c243bb967f61d81d9f400e2b5ba2b2
Formbook
99160f7ca07e18bc3a131520825ab4ce8d2f4c57b63bffc89d8e18d5a7fa25ce
Formbook
a5395961ee5eeddf2c81583e2eb11dafe8f8ebcc350204e0c8344e4d3e1614e6
Formbook
dadca1f5e784742f6e72c59228f1887dfd5c7977c28b1198164e146fdff84555
Formbook
db44e1da719b971f2fb5919d535170aab2779e13ab8db9e04e054c6efd4dff65
Formbook
e47b7ff50e6e7dd47087235ad782bdc84255e2642e80744d34ae027a2db13aec
Formbook
+ 1'752 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:sn26 rat spyware stealer trojan
Link:
https://tria.ge/reports/230926-gwf4aafa9x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
57d06b57605109335f41e7529a275a14155c39bd74c54049dfcdfa8a5756c09a
MD5 hash:
612b19e1ed04b4a8f442939324963a63
SHA1 hash:
5f12391109b022d1017312892ff95a7b751afa37
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/31b4156e-cadf-4b42-8770-f639ae7f59de/
Parent samples :
cc1e18df25ea2f4e3a97b78ceb434ba61318eae9ee868d62bb1b3b8e9dbf2c7c
61894dd6d947ab1237c08e4f020e6462fdc7a96903c7cf27523d4e21304c1612
44b4eef8a260669a21c64f95af4c5ad884b77fc118be9ade37dad2b908a37bee
c4079f3f904aaaeda007ba7ce93f24d8a47eb749be233eaf87766e12fcada032
1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521
276026d460a163a82f31f1d1b1283b13f37170ab543357585952c311606d6a7f
3075ce1d8754fd33aba3041411c6f1465abdb5c49495b18511c656589db79ba9
7a123e291c6c3bca48da92da78abd1157469dd5885f7af234e9114bcc5c8f061
ce4adf5f77ad3bf554ee6727abfe3c82e49ac5097e4e8d50ba2faba0d05b9c1d
a318197c6b7d13969ec28187327e1005ac7d39f969ef27b81f7967870e896378
5e356ba0663601a704ff745bf4e38b9a8ee7ececcd5443da641d46c30a04de07
5f4316e6d654f612b1aa557b15eae6502979697bcd4cdc101b49c2297a6dca14
91407535cc5852ecae7889b9f034920694c733c9e47f89d08a470e32b9d31e13
091fe3a36df94f559c878564de16e72c8ad5368ff0f1d89fec4b493725e96bbe
21696a3d60cb627bb86b4e08f32f1ae08e348ff3b4e99ad15c85febb1caca754
99160f7ca07e18bc3a131520825ab4ce8d2f4c57b63bffc89d8e18d5a7fa25ce
ae5f1fa9855fd6e4511a674f0a0465df7960a757409a0d176f50b10fd14925ad
02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec
ce56ba6e7d6693cf8b2110b6ce1789f9a38669af8e17c30ff83e9fec9372c372
bc1c8cb700d5be15c306441325d0390344f846c226d720647d9f8d8e37f458db
3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163
SH256 hash:
42c3915b3e8695b0ba8441b667248f0a85af693db439133701e409f8008edf99
MD5 hash:
b8f5e90d04ce426976470db953f0ec50
SHA1 hash:
9eafb14f9d5b5e8c032991154a5ba56b30a562a1
Link:
https://www.unpac.me/results/31b4156e-cadf-4b42-8770-f639ae7f59de/
SH256 hash:
0b4c93addb0071e4cc368bc5e46a535e2eafd360b5db8b6c87620d7225eade2d
MD5 hash:
e17d9bb18c1bf12de8c75fa570f4cf72
SHA1 hash:
97751a31524557387d136e0e42e204186d00b5dd
Link:
https://www.unpac.me/results/31b4156e-cadf-4b42-8770-f639ae7f59de/
SH256 hash:
02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec
MD5 hash:
2673a176c9729737316a6e6d660f0f79
SHA1 hash:
f3466f9e8e6d1c9e9d22e6fe9e2ee601d9c22788
Link:
https://www.unpac.me/results/31b4156e-cadf-4b42-8770-f639ae7f59de/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/02971b038e32/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/02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec

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
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.

Malspam

Formbook

rar 7ed03b1ce56f8d2da0fcff50652b3f118513bdac2f8b81381db7c62fdaafad33

Formbook

Executable exe 02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 7ed03b1ce56f8d2da0fcff50652b3f118513bdac2f8b81381db7c62fdaafad33
Cape
Cape
https://www.capesandbox.com/analysis/451156/
  
Dropped by
MD5 49d549322e92c3ad5acd7c3e772651ed

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