MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa4dda4c2839f40e630e48c3461ed30ff795514f16a4c4c91c6ff1c124d605df. 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 3 File information Comments
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SHA256 hash: aa4dda4c2839f40e630e48c3461ed30ff795514f16a4c4c91c6ff1c124d605df
SHA3-384 hash: d7b70f969667b804f2b969bde2082e91beb50b4db623643883b9c046535d364db2cbc11548132769a38a2dfd928e2660
SHA1 hash: 6e8ee8db155d97aafd853ee60d139e50938359a8
MD5 hash: 6db7f0c6c4021cede295ddc2a52d945e
humanhash: nevada-illinois-seventeen-johnny
File name:AWB18410773210.exe
Download: download sample
Signature Formbook
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File size:716'800 bytes
First seen:2022-09-05 08:10:21 UTC
Last seen:2022-09-05 08:43:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:zzE+aH2iNEF75euLUK/JWx/FlR9qR6N3Re2+hvjMWJAkdrFYB92/lYtsvv+wNVeM:GH16Z5fJWx/Flr+6be2+hLAkdrW92/l5
TLSH T150E4F20DE621AFE0F03903BA2171E6622B797F1595BED69C0CE6B2E718B47874107D87
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
355
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
AWB18410773210.exe
Verdict:
Malicious activity
Analysis date:
2022-09-05 08:11:41 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/b835a7d8-ec8b-442a-960c-692608b416a6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/307787/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
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SecuriteInfo.com.Trojan.PackedNET.1427-2.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Launching a process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6315af1fb00f73916cb97d13/reports/34c3ce00-fce1-4b45-86d5-5cd265d573fe/overview
Result
Verdict:
UNKNOWN
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/c463c4f1-8135-4f0f-bdbb-631a7ef37125
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1064973
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in 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 domain / URL
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: 697499 Sample: AWB18410773210.exe Startdate: 05/09/2022 Architecture: WINDOWS Score: 100 34 Multi AV Scanner detection for domain / URL 2->34 36 Malicious sample detected (through community Yara rule) 2->36 38 Yara detected AntiVM3 2->38 40 6 other signatures 2->40 10 AWB18410773210.exe 3 2->10         started        process3 file4 28 C:\Users\user\...\AWB18410773210.exe.log, ASCII 10->28 dropped 50 Tries to detect virtualization through RDTSC time measurements 10->50 14 AWB18410773210.exe 10->14         started        signatures5 process6 signatures7 52 Modifies the context of a thread in another process (thread injection) 14->52 54 Maps a DLL or memory area into another process 14->54 56 Sample uses process hollowing technique 14->56 58 Queues an APC in another process (thread injection) 14->58 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.vacationsme.us 17->30 32 vacationsme.us 34.102.136.180, 49758, 80 GOOGLEUS United States 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 21 cmstp.exe 17->21         started        signatures10 process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 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/aa4dda4c2839f40e630e48c3461ed30ff795514f16a4c4c91c6ff1c124d605df/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-09-05 08:11:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
18
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vjg5utbihh2a4yyojdbumhwtb73zkukpc2smjsi4n7y4cjgwaxpq._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:en27 rat spyware stealer trojan
Link:
https://tria.ge/reports/220905-j29znagce2/
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:
2edbe564d4eefcdfb0da411cd2c8395ee26cad5410741c5576bda0be24f3486a
MD5 hash:
3e0eaa2ddc8e773574a610dcbfb21c52
SHA1 hash:
c0f995e2c0f1d3915989cb59210e4fa4f38b898a
Detections:
FormBook
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/de7d8fe8-351d-43d9-a2c7-ba78a4e3ecd5/
Parent samples :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 hash:
c45a3dae97e5e635a567df02635fe941af384f35cc993d4e52a57fa4f4026b3e
MD5 hash:
966c65a2893f62df72494272d810448f
SHA1 hash:
de82f765123b6ed954996603b663e9bac36acfb6
Link:
https://www.unpac.me/results/de7d8fe8-351d-43d9-a2c7-ba78a4e3ecd5/
SH256 hash:
6a114b8d9cee3d0a5fc93c0ecddc95fb4505ddedee88f722979861e04eab2d7e
MD5 hash:
7ed6a7a289ee2a9d2c3a02cf9e5e4fbd
SHA1 hash:
d01b276c1d625d77e2880ee9cbc3eecc0b2f1ba4
Link:
https://www.unpac.me/results/de7d8fe8-351d-43d9-a2c7-ba78a4e3ecd5/
SH256 hash:
95644fc6fc5c77e8f3ac25107f88beb46dcffae753bd0f4468364d984b3dff8d
MD5 hash:
489a68fef83d1eac8ca59c75c3fea485
SHA1 hash:
a1893b34a335b1fe7064ca34b98b3f20f4db4859
Link:
https://www.unpac.me/results/de7d8fe8-351d-43d9-a2c7-ba78a4e3ecd5/
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
Link:
https://www.unpac.me/results/de7d8fe8-351d-43d9-a2c7-ba78a4e3ecd5/
SH256 hash:
aa4dda4c2839f40e630e48c3461ed30ff795514f16a4c4c91c6ff1c124d605df
MD5 hash:
6db7f0c6c4021cede295ddc2a52d945e
SHA1 hash:
6e8ee8db155d97aafd853ee60d139e50938359a8
Link:
https://www.unpac.me/results/de7d8fe8-351d-43d9-a2c7-ba78a4e3ecd5/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/aa4dda4c2839/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/aa4dda4c2839f40e630e48c3461ed30ff795514f16a4c4c91c6ff1c124d605df

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:meth_get_eip
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Author:Willi Ballenthin
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 aa4dda4c2839f40e630e48c3461ed30ff795514f16a4c4c91c6ff1c124d605df

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/307787/

Comments