MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a942ff27c44b844b9b4b6c77a43fc5d454c009c8dc649cd381ca7d3a9e23792b. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: a942ff27c44b844b9b4b6c77a43fc5d454c009c8dc649cd381ca7d3a9e23792b
SHA3-384 hash: 9ccfdebe90d42f6f18aa0e714daf86cb020eb2be1452fd89880f311e25c2842d80f43ca71adb631c0e82435f6220f1ad
SHA1 hash: 59a39ce422b9b68304c28106be82db90e27ab80c
MD5 hash: 0e18bbfd2b516bf6106521cef3b65588
humanhash: kitten-failed-ohio-twenty
File name:ORDER REQUEST, ISO, TAX DOC.COMPANY DOC.exe
Download: download sample
Signature Formbook
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File size:968'192 bytes
First seen:2022-10-13 16:17:36 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:/wZ5xznJ2uYPF2ea/b7bdWvAHMZQRp8Kf0oGzGrpja528wObl36hl0ZPPV+Vz:oIv/a/b7bdWImk8KfJmkncoleH+z
TLSH T19D256ABA22C58417E8693175D487D0F32AFBAD606061D6C76AC32F6FBC811BF9513386
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 08304c4d96966804 (4 x SnakeKeylogger, 3 x AgentTesla, 2 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/320020/
Detection(s):
SecuriteInfo.com.Trojan.PWS.StealerNET.122.10024.23213.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
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/63483a3cf7728fc83824f450/reports/06b47506-1e1d-4b00-b6dc-6a15787c1813/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/0f000501-02b5-4e2f-ac12-f21787292565
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1090050
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
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 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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 722662 Sample: ORDER REQUEST, ISO, TAX DOC... Startdate: 13/10/2022 Architecture: WINDOWS Score: 100 51 zj.zhanghonghong.com 2->51 53 www.6js33.com 2->53 61 Snort IDS alert for network traffic 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Sigma detected: Scheduled temp file as task from temp location 2->65 67 9 other signatures 2->67 9 ORDER REQUEST, ISO, TAX DOC.COMPANY DOC.exe 7 2->9         started        13 gefoYh.exe 5 2->13         started        signatures3 process4 file5 43 C:\Users\user\AppData\Roaming\gefoYh.exe, PE32 9->43 dropped 45 C:\Users\user\...\gefoYh.exe:Zone.Identifier, ASCII 9->45 dropped 47 C:\Users\user\AppData\Local\Temp\tmpC9.tmp, XML 9->47 dropped 49 ORDER REQUEST, ISO...COMPANY DOC.exe.log, ASCII 9->49 dropped 77 Adds a directory exclusion to Windows Defender 9->77 79 Injects a PE file into a foreign processes 9->79 15 ORDER REQUEST, ISO, TAX DOC.COMPANY DOC.exe 9->15         started        18 powershell.exe 21 9->18         started        20 schtasks.exe 1 9->20         started        81 Machine Learning detection for dropped file 13->81 22 gefoYh.exe 13->22         started        24 schtasks.exe 1 13->24         started        26 gefoYh.exe 13->26         started        signatures6 process7 signatures8 85 Modifies the context of a thread in another process (thread injection) 15->85 87 Maps a DLL or memory area into another process 15->87 89 Sample uses process hollowing technique 15->89 91 Queues an APC in another process (thread injection) 15->91 28 explorer.exe 15->28 injected 32 conhost.exe 18->32         started        34 conhost.exe 20->34         started        36 conhost.exe 24->36         started        process9 dnsIp10 55 www.mymentor.pro 91.189.114.17, 49703, 49704, 80 RU-CENTERRU Russian Federation 28->55 57 www.asiansniffs.com 81.17.29.147, 49702, 80 PLI-ASCH Switzerland 28->57 59 www.liposie-gaihekitosou.com 35.77.239.71, 49705, 49706, 80 AMAZON-02US United States 28->59 83 System process connects to network (likely due to code injection or exploit) 28->83 38 wlanext.exe 13 28->38         started        41 colorcpl.exe 28->41         started        signatures11 process12 signatures13 69 Tries to steal Mail credentials (via file / registry access) 38->69 71 Tries to harvest and steal browser information (history, passwords, etc) 38->71 73 Deletes itself after installation 38->73 75 2 other signatures 38->75
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/a942ff27c44b844b9b4b6c77a43fc5d454c009c8dc649cd381ca7d3a9e23792b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-10-09 21:12:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vfbp6j6ejocexg2lnr32ip6f2rkmacoi3rsjzu4bzj6tvhrdpevq._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:5pdf rat spyware stealer trojan
Link:
https://tria.ge/reports/221013-tryhzschak/
Behaviour
Creates scheduled task(s)
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Formbook
Unpacked files
SH256 hash:
96d65e9091e4ef2ffa34e6ebfaeaaadf54a8dadcd6632f232dbaff5bc7e268e8
MD5 hash:
7274e221fd11c9b20b633b43ced5d35f
SHA1 hash:
4ad51a6c1b28696dca6732ba29e1092511b2b28e
Detections:
XLoader
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/abae30e0-3939-4b9b-bacd-1199368866ca/
Parent samples :
d0c9d5f00d0620b708926f4a582f1d6ff405710c9533adfeaa9847c1f1f382d3
a942ff27c44b844b9b4b6c77a43fc5d454c009c8dc649cd381ca7d3a9e23792b
7f4037a13857e6b8c8d67cdae301b33289d2e66f3a9e618faab005be42c47ed8
SH256 hash:
cbfcf073cde339949fe3eab881781f6c62d584ac0b29f334e8faed072ca16579
MD5 hash:
28b95c83033864d34769d355565a8f35
SHA1 hash:
f9601d8401a50b374cebe422a13ca1c5793937e7
Link:
https://www.unpac.me/results/abae30e0-3939-4b9b-bacd-1199368866ca/
SH256 hash:
4fa00f806954961ab2f6523034d971aaf89e13df96d5b20c14c8e74ea1bddd89
MD5 hash:
d6b4547d9b7426c7dd3341417c972ab0
SHA1 hash:
a45410d770f607a67b447ee45c801bbea128a29c
Link:
https://www.unpac.me/results/abae30e0-3939-4b9b-bacd-1199368866ca/
SH256 hash:
a43d614ec4d60b8772cdb1b7cb555bbe9e09943edc4ab020a2efca4eb78b6b30
MD5 hash:
f1142d940291e7e00aaa18db833ab584
SHA1 hash:
49f68dfd9a2e1d7333df7323212d83f6f544a0d6
Link:
https://www.unpac.me/results/abae30e0-3939-4b9b-bacd-1199368866ca/
SH256 hash:
1383999cb3682a0a0a54fad8a8e3f0fda2d4ce6422fa35286cece258aa1844a1
MD5 hash:
d891ee2f90e3392ee593067a038f3335
SHA1 hash:
347e96ac60f38938b0061ce5c21bec28c87f71f9
Link:
https://www.unpac.me/results/abae30e0-3939-4b9b-bacd-1199368866ca/
SH256 hash:
edadc813f4440ada276da601d8f31780e5e138b8ee392e3f49a509322a1fb51e
MD5 hash:
574597554c69083c1af2b742a97a92b6
SHA1 hash:
043eea660b8650c5a0042f842fd8db3516d37a2c
Link:
https://www.unpac.me/results/abae30e0-3939-4b9b-bacd-1199368866ca/
SH256 hash:
a942ff27c44b844b9b4b6c77a43fc5d454c009c8dc649cd381ca7d3a9e23792b
MD5 hash:
0e18bbfd2b516bf6106521cef3b65588
SHA1 hash:
59a39ce422b9b68304c28106be82db90e27ab80c
Link:
https://www.unpac.me/results/abae30e0-3939-4b9b-bacd-1199368866ca/
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/a942ff27c44b844b9b4b6c77a43fc5d454c009c8dc649cd381ca7d3a9e23792b

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 a942ff27c44b844b9b4b6c77a43fc5d454c009c8dc649cd381ca7d3a9e23792b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/320020/

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