MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83acd88ea989609fc7c635ea881d6df384c1720dfd87d7e1c01cad3bcc241d42. 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 2 File information Comments
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SHA256 hash: 83acd88ea989609fc7c635ea881d6df384c1720dfd87d7e1c01cad3bcc241d42
SHA3-384 hash: f4f636af72f374062a352332a46bc2f24655f7b6bfb9a9327c858572e0d0a998af74028915ecd16ad20f9de65f8dfa2f
SHA1 hash: 53ada7e4ac771b55e650bd3180e6f8157af98084
MD5 hash: acf0291a02b7a2b9ec663e41a5408b5e
humanhash: oranges-stream-lamp-yellow
File name:Ordine di acquisto urgente.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'077'248 bytes
First seen:2022-04-14 14:17:09 UTC
Last seen:2022-04-20 10:21:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:jcIuIJ7awRZLvrfEc3Erhk88FRFhoKf0yX7:oIp9awRZLAc3Elr8FRQKf
Threatray 14'672 similar samples on MalwareBazaar
TLSH T11D35AEACB24079EFC817CD76C9681C64AA2066A7530FD203A02725DD9A2DAD7DF14DF3
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
305
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Ordine di acquisto urgente.pdf.exe
Verdict:
Malicious activity
Analysis date:
2022-04-14 17:12:42 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/6f3981a5-7719-4be7-8c7b-9270035b37ba

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/263764/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn34.24874.12445.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Launching a process
Creating a process with a hidden window
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit obfuscated packed
Link:
https://www.filescan.io/uploads/62582d21ffe27d5119cefa58/reports/93b86463-4ae8-462d-9ffe-fe4ca08b853a/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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/814a6907-e66a-4f49-a022-fa13a2fb202c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/976951
Signature
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
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 dropped file
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
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
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 an obfuscated file name to hide its real file extension (double extension)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 609440 Sample: Ordine di acquisto urgente.... Startdate: 14/04/2022 Architecture: WINDOWS Score: 100 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 Antivirus detection for URL or domain 2->52 54 17 other signatures 2->54 10 Ordine di acquisto urgente.pdf.exe 7 2->10         started        process3 file4 38 C:\Users\user\AppData\...\AaZYIxVzBU.exe, PE32 10->38 dropped 40 C:\Users\...\AaZYIxVzBU.exe:Zone.Identifier, ASCII 10->40 dropped 42 C:\Users\user\AppData\Local\...\tmp1D2F.tmp, XML 10->42 dropped 44 C:\...\Ordine di acquisto urgente.pdf.exe.log, ASCII 10->44 dropped 58 Writes to foreign memory regions 10->58 60 Adds a directory exclusion to Windows Defender 10->60 62 Injects a PE file into a foreign processes 10->62 14 RegSvcs.exe 10->14         started        17 RegSvcs.exe 10->17         started        19 powershell.exe 25 10->19         started        21 2 other processes 10->21 signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 23 explorer.exe 14->23 injected 72 Tries to detect virtualization through RDTSC time measurements 17->72 27 conhost.exe 19->27         started        29 conhost.exe 21->29         started        process8 dnsIp9 46 www.bearberry-extract.com 107.187.156.245, 49792, 80 EGIHOSTINGUS United States 23->46 56 System process connects to network (likely due to code injection or exploit) 23->56 31 msiexec.exe 23->31         started        signatures10 process11 signatures12 74 Modifies the context of a thread in another process (thread injection) 31->74 76 Maps a DLL or memory area into another process 31->76 34 cmd.exe 1 31->34         started        process13 process14 36 conhost.exe 34->36         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/83acd88ea989609fc7c635ea881d6df384c1720dfd87d7e1c01cad3bcc241d42/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-04-14 11:48:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
21 of 41 (51.22%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=qownrdvjrfqj7r6ggxviqhln6ocmc4qn7wd5pyoadswtxtbedvba._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
20ceb4d62738b1472fd88b7ea5ca3d9b1774cf1fbef328f4b349e749c68fe0b1
Formbook
35ef7f464caa7cc3d93a0bd692aa8892284a56b098ae94ec9a70c2e876091b88
Formbook
67435f426cc9f3036d38b4af360f5fc7a4ea547a3e93eccbdf0425718e174dd8
Formbook
6ad94828733d211368d39bc8669735c844df4d7c2265ff4869558c683170e18f
Formbook
ae9f0346b40cfbd4c996fa4c44dc84cbc39ee02785059b02138474a0cb0acd46
Formbook
b0b1f27468552599b6e685345007b1fdbea80c2c60a914a01a6e0abdd35fcdf5
Formbook
cd0c02c985600efee1edc7dcca8808cdf06f3ac1d52427d39c2931d2472caa6a
Formbook
d18ee31980399f171c8219a6d14ad83f3d61017f8d14e44c6f3f3bd067eccdf7
Formbook
e9deef760186498e9b4d075c784b6170bc976a767652f4a5228215fd1b1841cc
Formbook
+ 14'662 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:d2g7 rat spyware stealer trojan
Link:
https://tria.ge/reports/220414-rl9yqafdh6/
Behaviour
Creates scheduled task(s)
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
Checks computer location settings
Formbook Payload
Formbook
Unpacked files
SH256 hash:
55387d8366303a794ee0f3d71a04617f0f1ee9c67a55c913f9b6b870efa123b8
MD5 hash:
c7a79737aa6d4fadfac3b251d48773c4
SHA1 hash:
1afbe9593ed76bd2edb0e0dba4512eb3c8d43fb3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/f94ce1ea-4030-4014-829e-7f699ea582e2/
Parent samples :
b76cdf3f203937fdd5a57710faf9c4d78281f4b893e8caff17a5053bb741bffc
28c337c65bf47de6ddca1d5e975f8dc8dfb86d3f1b9e14f7f2db464a089f6c06
d92480dba0931328c2c808ae67f0be25ce8eed46de25ad916d111245136254bd
4d6852edf73457b9a9db48a0f0220f3514bfcfdc0bb11a03b8496cccf45cc671
35c8631e608c2dea5c2969f9f59a0c85317bba6af71f2e56063b8efef57a3e05
54cfa1f93d985c0bf952e00247f781f36988dffec0cb8d83f79fa3e41d98b335
a49a78b4925decc0dc56f7d6b51a49b17d028016ebd820de985c6982957eeac9
a894f6175d1e84c3a4dd7d14703624c4134888b024d122bfac661007e98a554a
c3e4c2e1e242cf92142f4d4fb1896354cfa07089f40243b31046ff3eae8ac2c8
ffd04d82156eede57a242db418b539e9ee13aa1bf5123df96db273c0f6f6ce71
b8ae965dc24d6b7149c486672bf33989d6c27f108a68cb447cf5308eb91b8217
cf5d0eb741adc67acf2cffbbef91fb030c94aca534d7a6b95efdbace11b4a62a
77de2fa49e24c93e217088285cfcc816cf7ae40928898dc3e88c0d6a67a31c80
8318860499c2f3e03a5e580fbd91d8c1214acc713b032e908442651e7b54ca81
e1a8e7ef8a30663d9bae4b02310ab1b0e243e0624aed6765946e9d8f73b879a1
499fb85e548a134abdf18b6a9d149b9c4f2bf9b0f534dd4c86e600180fb19bf9
930759b9b35cdcfbdd7196aecb009374c34a02a142b67c99d07da2918e9aa341
0cac8ae6143ca74f0cd566c8ded5a586f03d9be060d2bab62513ccb4382196db
97504b3dbc2dfe20922f3323f905aa9d4f5f440720cab63dd26c82f26f7d76a2
83acd88ea989609fc7c635ea881d6df384c1720dfd87d7e1c01cad3bcc241d42
0119c8252290ab1c092ee4ab1d9cd18502909207bf3368491b1448a8f7e14513
b28653e85b97fd93c5d893839290ff17e6a6eb748eba11c9ee11ec9884e35410
SH256 hash:
c49d8cac4a52ab1cf672646b5d88d8269e06252b75554769034003e050375e92
MD5 hash:
778ae6cf06be5cc50e3ece2adb2ab425
SHA1 hash:
d0755ce9cb43086b065811f8c9899f4f8ed34616
Link:
https://www.unpac.me/results/f94ce1ea-4030-4014-829e-7f699ea582e2/
SH256 hash:
945df86ba6f5ab9d06160deed0197ddcabba516bdf2b2d24311162d12c0eb5b4
MD5 hash:
3a2fc4cbc5159994d7dec724a74460f4
SHA1 hash:
583711006fcc9d157a37073f7af2500b3373f5fd
Link:
https://www.unpac.me/results/f94ce1ea-4030-4014-829e-7f699ea582e2/
SH256 hash:
c14ea4bdd27d729f044bf4e83e0bdb1e1cfcc92c987036fdbc439283c1022211
MD5 hash:
0587f7540c5eefae2bb042a11ff155d5
SHA1 hash:
24ca734b95fe93790c053f748791de56e66ebc1e
Link:
https://www.unpac.me/results/f94ce1ea-4030-4014-829e-7f699ea582e2/
SH256 hash:
83acd88ea989609fc7c635ea881d6df384c1720dfd87d7e1c01cad3bcc241d42
MD5 hash:
acf0291a02b7a2b9ec663e41a5408b5e
SHA1 hash:
53ada7e4ac771b55e650bd3180e6f8157af98084
Link:
https://www.unpac.me/results/f94ce1ea-4030-4014-829e-7f699ea582e2/
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/83acd88ea989609fc7c635ea881d6df384c1720dfd87d7e1c01cad3bcc241d42

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 83acd88ea989609fc7c635ea881d6df384c1720dfd87d7e1c01cad3bcc241d42

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/263764/

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