MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4a65b2daf7061d116c2bdd500a40376e170efea89a6b0cb4c68d63606a8e107. 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: b4a65b2daf7061d116c2bdd500a40376e170efea89a6b0cb4c68d63606a8e107
SHA3-384 hash: 5498e0ed0011831c8b14b5cea79862f146721fbbcc593b5d6903f99f0825f406c2427d0b07f55e92438ec8e827898cf2
SHA1 hash: afc6a8ee3c951252207e4563e0e41c04e55d56f3
MD5 hash: 2f30b6576709f5f6644ea5bba4420f9e
humanhash: asparagus-july-saturn-mirror
File name:REQUEST FOR QOUTATION.exe
Download: download sample
Signature Formbook
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File size:659'456 bytes
First seen:2022-04-21 08:32:35 UTC
Last seen:2022-04-21 09:58:07 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:QLhLz8+yVOi/kWTZGLQNUgePLnnqLloFbBB4VmFWLuB:yL4+yVOi/VZGMN8PLnnqLl+bTkmFd
TLSH T1AAE4F2A721964912C1DE46FD9170D3DC837C6F538A27F38844A931B6C971E8F2B48AE7
TrID 54.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
23.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
7.8% (.EXE) Win64 Executable (generic) (10523/12/4)
4.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.3% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon f0f0f2b2e834b498 (29 x AgentTesla, 12 x AveMariaRAT, 8 x RedLineStealer)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
246
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/265382/
Detection(s):
SecuriteInfo.com.Scr.Malcodegdn30.27260.16895.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe update.exe
Link:
https://www.filescan.io/uploads/626116caffe27d51192165da/reports/1add7b61-01ec-468a-9293-78a5114d623d/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/1cc0f3f5-62f1-4217-9921-9b437cfacdfd
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/980504
Signature
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 612988 Sample: REQUEST FOR QOUTATION.exe Startdate: 21/04/2022 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 12 other signatures 2->54 10 REQUEST FOR QOUTATION.exe 7 2->10         started        process3 file4 38 C:\Users\user\AppData\Roaming\nlYauD.exe, PE32 10->38 dropped 40 C:\Users\user\AppData\Local\...\tmp3A1D.tmp, XML 10->40 dropped 58 Adds a directory exclusion to Windows Defender 10->58 60 Injects a PE file into a foreign processes 10->60 14 REQUEST FOR QOUTATION.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        21 BackgroundTransferHost.exe 13 10->21         started        signatures5 process6 signatures7 62 Modifies the context of a thread in another process (thread injection) 14->62 64 Maps a DLL or memory area into another process 14->64 66 Sample uses process hollowing technique 14->66 68 Queues an APC in another process (thread injection) 14->68 23 explorer.exe 14->23 injected 27 conhost.exe 17->27         started        29 conhost.exe 19->29         started        process8 dnsIp9 42 www.brasalesoffersus.com 185.53.179.91, 49856, 80 TEAMINTERNET-ASDE Germany 23->42 44 www.kns148.icu 38.55.63.174, 49883, 80 COGENT-174US United States 23->44 46 3 other IPs or domains 23->46 56 System process connects to network (likely due to code injection or exploit) 23->56 31 rundll32.exe 23->31         started        signatures10 process11 signatures12 70 Self deletion via cmd delete 31->70 72 Modifies the context of a thread in another process (thread injection) 31->72 74 Maps a DLL or memory area into another process 31->74 76 Tries to detect virtualization through RDTSC time measurements 31->76 34 cmd.exe 1 31->34         started        process13 process14 36 conhost.exe 34->36         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/b4a65b2daf7061d116c2bdd500a40376e170efea89a6b0cb4c68d63606a8e107/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-04-21 08:33:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wstfwlnpobq5cfwcxxkqbjado3qxb37krgtlbs2mndldmbvi4edq._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:s0w6 rat spyware stealer trojan
Link:
https://tria.ge/reports/220421-kfw2cadhh5/
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
Deletes itself
Formbook Payload
Formbook
Unpacked files
SH256 hash:
1b88ec07e7a1bc2c9413e31fca6a15931e1bff65c7e296ad187c3104dd4fac30
MD5 hash:
49d653596027e9fcb0364237bc656096
SHA1 hash:
50ad71926c6266a6c6a5541aea118f3d04c1d41b
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/5e5457ed-b0b2-4f56-918b-51b8854a3e3a/
Parent samples :
b4a65b2daf7061d116c2bdd500a40376e170efea89a6b0cb4c68d63606a8e107
d5c2e24b2a27a822fd7a2611be1ed64daa804eab1819546030141407e28e941b
94a55907591211a457315f3b73162da7bbd3f94d231d23e05d5fca4e158cfb64
SH256 hash:
03b6d9a0ff6d826b5a742927ea46adb714d71a55c00503ab15201e5ea366d013
MD5 hash:
6a9a99de378c789daf4152e01db7241c
SHA1 hash:
9e432cbd7125f34f6f3513cec74a9a035fca33b6
Link:
https://www.unpac.me/results/5e5457ed-b0b2-4f56-918b-51b8854a3e3a/
SH256 hash:
9d6c52af48cd6e1deee296a581643131822896e4dc00a41fff1c1f8b15f58472
MD5 hash:
940eb3970660b319dae870c38c19514b
SHA1 hash:
989d40403e025d1ce1b43585731f4a3126dda050
Link:
https://www.unpac.me/results/5e5457ed-b0b2-4f56-918b-51b8854a3e3a/
SH256 hash:
ef058d0a23b36683b62d8331a6c43c2356bede56fdbe3587ba5b6889f344a67e
MD5 hash:
b41d180b984cffb701dc35d732f53494
SHA1 hash:
86a8c95cfabccfb57ca2e4520122d165776dee20
Link:
https://www.unpac.me/results/5e5457ed-b0b2-4f56-918b-51b8854a3e3a/
SH256 hash:
b4a65b2daf7061d116c2bdd500a40376e170efea89a6b0cb4c68d63606a8e107
MD5 hash:
2f30b6576709f5f6644ea5bba4420f9e
SHA1 hash:
afc6a8ee3c951252207e4563e0e41c04e55d56f3
Link:
https://www.unpac.me/results/5e5457ed-b0b2-4f56-918b-51b8854a3e3a/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b4a65b2daf70/report/overview.html
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/b4a65b2daf7061d116c2bdd500a40376e170efea89a6b0cb4c68d63606a8e107

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 b4a65b2daf7061d116c2bdd500a40376e170efea89a6b0cb4c68d63606a8e107

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/265382/

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