MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ee1e5789f4ece302d6dbb9ba0e01e8af7e301e4351c2bad6b1b3a1097733486. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
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SHA256 hash: 4ee1e5789f4ece302d6dbb9ba0e01e8af7e301e4351c2bad6b1b3a1097733486
SHA3-384 hash: 42a0442d8dd8be7bed2b028120d3813b96abbeab1073eadc8f5a438a2168dea9903da8e1a9dd75e97d45739f3182db21
SHA1 hash: 83da151407c8972b0f362922a29b447e4e04fe5f
MD5 hash: 8a35d65ed584031411275409aa15a35f
humanhash: butter-purple-hot-aspen
File name:PO 3021.exe
Download: download sample
Signature Formbook
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File size:1'451'520 bytes
First seen:2022-06-02 05:01:31 UTC
Last seen:2022-06-02 05:37:40 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:/9uCaLukNjoyA8OsqgO8qtJt+y4UOmLPNqcU30YqfgnFY8+pPvq121:/9u5OsqghqtJpp5qcUnqoR+p
TLSH T17965080063F91909F6FB5FBAA9B265404BA77DEA683DD34E38AC54CD0F63B408951723
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 92aca6aaaaa6acd0 (3 x AgentTesla, 2 x Formbook, 2 x RemcosRAT)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
323
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
PO 3021.exe
Verdict:
Malicious activity
Analysis date:
2022-06-02 05:04:30 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/55674bab-3754-4b27-a4cd-1b5e9b44c105

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/276224/
Detection(s):
SecuriteInfo.com.Variant.MSILHeracles.38911.22682.8783.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/6298633bb5fe347d254d8d47/reports/2878ecf6-5924-44ba-b304-40fe3e870ee5/overview
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/8fc2b106-27af-44bc-a13b-fc435499b199
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1005496
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found 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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd or bat file
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
Uses netsh to modify the Windows network and firewall settings
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 637991 Sample: PO 3021.exe Startdate: 02/06/2022 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 9 other signatures 2->42 10 PO 3021.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\PO 3021.exe.log, ASCII 10->28 dropped 58 Injects a PE file into a foreign processes 10->58 14 PO 3021.exe 10->14         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 14->17 injected process8 dnsIp9 30 uh1403.bb0a72db03.11dundns.com 45.138.69.159, 49840, 80 CNSERVERSUS Italy 17->30 32 www.cartaper.com 94.198.98.168, 49817, 80 ASSEFLOWAmsterdamInternetExchangeAMS-IXIT Italy 17->32 34 www.zhi-j-jh.xyz 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 46 Performs DNS queries to domains with low reputation 17->46 48 Uses netsh to modify the Windows network and firewall settings 17->48 21 netsh.exe 17->21         started        signatures10 process11 signatures12 50 Self deletion via cmd or bat file 21->50 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 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/4ee1e5789f4ece302d6dbb9ba0e01e8af7e301e4351c2bad6b1b3a1097733486/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-06-02 03:25:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
17
AV detection:
18 of 40 (45.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j3q6k6e7j3hdallnxon2bya6rl36gapeguocxllldm5bbf3tgsda._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:e1a8 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220602-fn4zpsdca7/
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
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
2a82e184330b290f4f2b79f1c411c951d80f81557f1ab2a130078ae53048c8ed
MD5 hash:
a9e6fd950d0dd3180a7536348a267a49
SHA1 hash:
42bced871e7e3f372aeaf9fb13d0c47388d7f6a6
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/1c71a4cd-5db8-4182-87e2-646f1b4c98b1/
SH256 hash:
d42d83862718fd686b235122a7218c2f993db54adc311f4eb473c7019ceedff7
MD5 hash:
d49a0fac911e83d5420ffae429973a38
SHA1 hash:
d70188e3d2726e0c01309da98ca278ec46d68ad3
Link:
https://www.unpac.me/results/1c71a4cd-5db8-4182-87e2-646f1b4c98b1/
SH256 hash:
394989c2fca72de8e1ec25d265d61be0de23ad48a7c619ae1ca0d50648b40f7f
MD5 hash:
bac57c8a886ec16cb571c9cbaf387f57
SHA1 hash:
986109bb3376fdf93b3927ca54a53d18c41a76f9
Link:
https://www.unpac.me/results/1c71a4cd-5db8-4182-87e2-646f1b4c98b1/
SH256 hash:
879c29560b21be7d9b69ca27ca4756df86e080fa3e34cb191aad5cb1e5f05504
MD5 hash:
30b6a54a992eae921a2eb8c5ea130911
SHA1 hash:
1c83f0319bffe007077c6656418c9b7344d5affe
Link:
https://www.unpac.me/results/1c71a4cd-5db8-4182-87e2-646f1b4c98b1/
SH256 hash:
4ee1e5789f4ece302d6dbb9ba0e01e8af7e301e4351c2bad6b1b3a1097733486
MD5 hash:
8a35d65ed584031411275409aa15a35f
SHA1 hash:
83da151407c8972b0f362922a29b447e4e04fe5f
Link:
https://www.unpac.me/results/1c71a4cd-5db8-4182-87e2-646f1b4c98b1/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4ee1e5789f4e/report/overview.html
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/4ee1e5789f4ece302d6dbb9ba0e01e8af7e301e4351c2bad6b1b3a1097733486

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
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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 4ee1e5789f4ece302d6dbb9ba0e01e8af7e301e4351c2bad6b1b3a1097733486

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/276224/

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