MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b4faaccc4842d408c3caad47e364f69dad51765ab242e4dc8c97de0cd190ddc. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b4faaccc4842d408c3caad47e364f69dad51765ab242e4dc8c97de0cd190ddc
SHA3-384 hash: 4f6dd19a534b7529f8ced2ed85e20a49a6e434671c6cf052e28c56c0f7eb08648c0bd47244814cec50627010fb827fe1
SHA1 hash: bbb2330799adfffd534505aac9ac112e16f7fc8e
MD5 hash: 9e40b98924b94ea375faf0bccf2609ee
humanhash: freddie-nuts-monkey-network
File name:Official Purchase Order 121322.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'043'968 bytes
First seen:2022-12-19 08:38:22 UTC
Last seen:2022-12-25 19:22:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:wGTgVIYba1JXh+Q/Fkq1SW0vQ2lBS4G3r5/oOi3bJhxVsWy:wGT6Iz3RJtkqh0vQ2
Threatray 20'084 similar samples on MalwareBazaar
TLSH T14D25AE1131B394A3F8D745B74021BACD1D3D7122A6D1E22739B93A9462065BFFBC4FA2
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
9e40b98924b94ea375faf0bccf2609ee.exe
Verdict:
Suspicious activity
Analysis date:
2022-12-14 10:12:59 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f3461bcd-b2cd-470d-8a94-a7e4c6302f7f

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/347857/
Detection(s):
SecuriteInfo.com.Trojan.Generic.32532450.15489.159.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Unauthorized injection to a system process
Gathering data
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7a029d01-772b-467a-bda4-991587e80f5f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1136954
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
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)
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 769682 Sample: Official Purchase Order 121... Startdate: 19/12/2022 Architecture: WINDOWS Score: 100 29 www.spirituallyzen.com 2->29 37 Snort IDS alert for network traffic 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 Antivirus detection for URL or domain 2->41 43 7 other signatures 2->43 9 Official Purchase Order 121322.exe 3 2->9         started        signatures3 process4 file5 27 C:\...\Official Purchase Order 121322.exe.log, ASCII 9->27 dropped 59 Injects a PE file into a foreign processes 9->59 13 Official Purchase Order 121322.exe 9->13         started        16 Official Purchase Order 121322.exe 9->16         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 13->61 63 Maps a DLL or memory area into another process 13->63 65 Sample uses process hollowing technique 13->65 67 Queues an APC in another process (thread injection) 13->67 18 explorer.exe 13->18 injected process9 dnsIp10 31 lodehewulan.yachts 82.163.176.114, 49701, 49702, 80 WILDCARD-ASWildcardUKLimitedGB United Kingdom 18->31 33 www.www64421.com 192.74.252.154, 49696, 80 PEGTECHINCUS United States 18->33 35 3 other IPs or domains 18->35 45 System process connects to network (likely due to code injection or exploit) 18->45 47 Performs DNS queries to domains with low reputation 18->47 49 Uses netstat to query active network connections and open ports 18->49 22 NETSTAT.EXE 13 18->22         started        25 autofmt.exe 18->25         started        signatures11 process12 signatures13 51 Tries to steal Mail credentials (via file / registry access) 22->51 53 Tries to harvest and steal browser information (history, passwords, etc) 22->53 55 Deletes itself after installation 22->55 57 2 other signatures 22->57
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b4faaccc4842d408c3caad47e364f69dad51765ab242e4dc8c97de0cd190ddc/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-12-14 08:33:26 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
27 of 41 (65.85%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jnh2vtgeqqwubdb4vlkh4nspnhnnkf3fvmsc4toizf66btizbxoa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
00898f3a97840deb064852654e9c86e6e250a0e638b51c6af8938aa086ca8e23
Formbook
3276e7ff57ccbea104651066c1d45301d52fbfce23d0d48f5238d82a51abd852
Formbook
40a0e178f578d7ec158ce487518b06e17fb3ef12af1f175064853128642c4817
Formbook
4b01d8e4729b07277f8f71037f9fbda1f8d817d9688850d941e7832727bb0276
Formbook
590277f960d74add2860c7332ae427eaea968bdf3bb4d5a8da5563a3115b16f7
Formbook
6ff54e94c6557ae213d67159c8c8bbdc84079801ba263631f9c7a798f660eaad
Formbook
75b803222917f13da307cd36a22b56e0192860ede2c368cab45d53cef5f4422f
Formbook
90a5faee22076b0369872bafae0c6f194f4d2a92ec0047427edc06590ee64f36
Formbook
d1dd1f80a7b08c0b8ee7c3067df3d35dadc6af79b02761ccf70dfcaa53f76cd7
Formbook
dcc8a16c411d371bf110f3d0bfe6a4224a53810844ef1bc02d3f89f2e02e7c0b
Formbook
+ 20'074 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:snky rat spyware stealer trojan
Link:
https://tria.ge/reports/221219-kkaznsef29/
Behaviour
Modifies Internet Explorer settings
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
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/8e3ea577-7f91-4490-84a1-85bd3bf7b97f
Unpacked files
SH256 hash:
5404fc32f356990369ac9a74be7b1a43e7c561b5f660c0abb687a3f06dc9aa14
MD5 hash:
4c0307f77f0161e0e8eb30c86b7f2548
SHA1 hash:
b3b2424c96244f27defa6f492476aaa5fd25cb19
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/a824cb5a-37e9-4132-b27d-812b06b09b95/
Parent samples :
75b803222917f13da307cd36a22b56e0192860ede2c368cab45d53cef5f4422f
77a99df0938f000db363d3f123fed3a7e6c6b9ebce4f9f59d68a277327d15eb4
d1dd1f80a7b08c0b8ee7c3067df3d35dadc6af79b02761ccf70dfcaa53f76cd7
4b01d8e4729b07277f8f71037f9fbda1f8d817d9688850d941e7832727bb0276
3276e7ff57ccbea104651066c1d45301d52fbfce23d0d48f5238d82a51abd852
590277f960d74add2860c7332ae427eaea968bdf3bb4d5a8da5563a3115b16f7
51b1ea5740bc66a8e008f46ee5583c422e7a5302cb1d7737654e84666883ce11
4b4faaccc4842d408c3caad47e364f69dad51765ab242e4dc8c97de0cd190ddc
6ff54e94c6557ae213d67159c8c8bbdc84079801ba263631f9c7a798f660eaad
4b834ce0a8404956a934c2b2be8441439b5b049179fe94788b5007fda7f2c2fa
SH256 hash:
1ab4a6e607afd06069dd9cd1ff07768f5cb7691b2aa7e4ebf5e19a2a5998c53e
MD5 hash:
ea8f822532135bf22f257bb18832bc25
SHA1 hash:
91999663771403e1e6f67e468ec58585bb5731b0
Link:
https://www.unpac.me/results/a824cb5a-37e9-4132-b27d-812b06b09b95/
SH256 hash:
35cad145efd0b5b6396491150d2e307d4cb5e06d4f1b41aa310393c6dce520b9
MD5 hash:
56f8354a2e307e73243ff0056295fedd
SHA1 hash:
ed3257769ea438e1b5e86c3ef033e2deca86e239
Link:
https://www.unpac.me/results/a824cb5a-37e9-4132-b27d-812b06b09b95/
SH256 hash:
340ba2312d5cdfc3d89f3f35f627187dcb406e5afea134bc76b04f52f4285df3
MD5 hash:
85f9290aa8900e9fd74b01ee23125706
SHA1 hash:
310eb5e4aea5471b74a6385f1da283b9d8e3d698
Link:
https://www.unpac.me/results/a824cb5a-37e9-4132-b27d-812b06b09b95/
SH256 hash:
523b1e2573d221bee744e53f3d14e631d9eb9bcfc7bb1e1cc3473fa80ec51583
MD5 hash:
a2239066bc59cda16de53083c7382904
SHA1 hash:
2c2060d4802468f88ca74dae8c48782d61ddb04c
Link:
https://www.unpac.me/results/a824cb5a-37e9-4132-b27d-812b06b09b95/
SH256 hash:
e7165d8e70dafc3762995d467f422f4d7297cf707ce76a6ae325e3a3b45932a5
MD5 hash:
67966772fa9cc76bd26b9c996297fa19
SHA1 hash:
0fe68a26ea90f416e7b096ab8528333779d626cb
Link:
https://www.unpac.me/results/a824cb5a-37e9-4132-b27d-812b06b09b95/
SH256 hash:
4b4faaccc4842d408c3caad47e364f69dad51765ab242e4dc8c97de0cd190ddc
MD5 hash:
9e40b98924b94ea375faf0bccf2609ee
SHA1 hash:
bbb2330799adfffd534505aac9ac112e16f7fc8e
Link:
https://www.unpac.me/results/a824cb5a-37e9-4132-b27d-812b06b09b95/
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/4b4faaccc4842d408c3caad47e364f69dad51765ab242e4dc8c97de0cd190ddc

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
Create hunting rule
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

Executable exe 4b4faaccc4842d408c3caad47e364f69dad51765ab242e4dc8c97de0cd190ddc

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/347857/

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