MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b49f6a646a9c6cdc0456310e02695f338b0a9fe352a7b8edbdd3ed8e1ffc069d. 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: 8


Intelligence 8 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b49f6a646a9c6cdc0456310e02695f338b0a9fe352a7b8edbdd3ed8e1ffc069d
SHA3-384 hash: 15f85c8e0ef2d1fbfbc4a9b6d83babe55668b2605bd0733156e0bd9ed53711ec5299b53f4d5e31558197e4e994ae00ff
SHA1 hash: 873f872c3035b3e06cfe8619cf3fd61ffd70dcf6
MD5 hash: 6ebcbf9650401abe10966f47a7d98d76
humanhash: india-jig-high-lake
File name:comprobante de pago bancario.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'430'016 bytes
First seen:2021-04-07 15:25:47 UTC
Last seen:2021-04-07 15:56:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:p21sz+Txdx1t6gy7Gevo7Xf1iHqwMIQDB4tzL2P6gsfW1bdv/ineqc:p21sSLxf6B7Gk/6jDB4tzLGewvqne
Threatray 24 similar samples on MalwareBazaar
TLSH 526512102B9C8F80E47F5B360632645127F1BD6ED326D65D3DD932CE3AB6A448772B12
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
163
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
comprobante de pago bancario.exe
Verdict:
Malicious activity
Analysis date:
2021-04-07 15:39:53 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/62f10896-9d4b-427b-9d82-596ddd608724

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/132880/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.624.28236.29817.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/668871
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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
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 (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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 383365 Sample: comprobante de pago bancario.exe Startdate: 07/04/2021 Architecture: WINDOWS Score: 100 51 www.martinbrosenterprise.com 2->51 53 martinbrosenterprise.com 2->53 71 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->71 73 Found malware configuration 2->73 75 Malicious sample detected (through community Yara rule) 2->75 77 10 other signatures 2->77 11 comprobante de pago bancario.exe 7 2->11         started        signatures3 process4 file5 41 C:\Users\user\AppData\...\yrZXtfnArg.exe, PE32 11->41 dropped 43 C:\Users\...\yrZXtfnArg.exe:Zone.Identifier, ASCII 11->43 dropped 45 C:\Users\user\AppData\Local\...\tmpDC5D.tmp, XML 11->45 dropped 47 C:\...\comprobante de pago bancario.exe.log, ASCII 11->47 dropped 87 Writes to foreign memory regions 11->87 89 Injects a PE file into a foreign processes 11->89 15 RegSvcs.exe 6 11->15         started        19 schtasks.exe 1 11->19         started        signatures6 process7 file8 49 C:\Users\user\AppData\Roaming\suSwVklf.exe, PE32 15->49 dropped 61 Tries to detect virtualization through RDTSC time measurements 15->61 63 Injects a PE file into a foreign processes 15->63 21 RegSvcs.exe 15->21         started        24 schtasks.exe 1 15->24         started        26 conhost.exe 19->26         started        signatures9 process10 signatures11 79 Modifies the context of a thread in another process (thread injection) 21->79 81 Maps a DLL or memory area into another process 21->81 83 Sample uses process hollowing technique 21->83 85 Queues an APC in another process (thread injection) 21->85 28 explorer.exe 21->28 injected 32 conhost.exe 24->32         started        process12 dnsIp13 55 www.corrlib.com 168.119.91.111, 49737, 80 HETZNER-ASDE Germany 28->55 57 www.yogatrac.com 28->57 59 pixie.porkbun.com 44.227.76.166, 49748, 80 AMAZON-02US United States 28->59 91 System process connects to network (likely due to code injection or exploit) 28->91 34 explorer.exe 28->34         started        37 conhost.exe 32->37         started        signatures14 process15 signatures16 65 Modifies the context of a thread in another process (thread injection) 34->65 67 Maps a DLL or memory area into another process 34->67 69 Tries to detect virtualization through RDTSC time measurements 34->69 39 cmd.exe 1 34->39         started        process17
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b49f6a646a9c6cdc0456310e02695f338b0a9fe352a7b8edbdd3ed8e1ffc069d/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-04-07 15:26:06 UTC
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wspwuzdktrwnybcwgehae2k7gofqvh7dkkt3r3n52pwy4h74a2oq._file
Verdict:
unknown
Similar samples:
0726eef18a27b6e019baa87d12d004efc1e0fb42169acedb5a56fee6d39d8946
Formbook
084b7a2a142edf5c3ebcd6bcafebe00a6953b36eff6ed7dafd54a490e657b1f5
Formbook
4ac0c7eebfc249cfcc200ff60ee5b1f2d7e4d6fb45544961f5ba7a7650f43a7f
Formbook
5501a072a478f1b6c6045154d4b3e5c102c5da98041f503d80b8a2b50bb6b85b
Formbook
5ef4f1d59492644372e4de91586798adb788432987848730694be8db0f968008
Formbook
69b433882a0be8350987589222a1b677cb948d1efea4e523b878a778bad33d4a
Formbook
6d13e70c1d1771bcbaedb34b5d89ea697d09cc78b3ed1a972def7dfd8a8f9325
Formbook
c4bd358aa9e15948a2713549f109f65124e5911aefa709e921da094aac16a163
Formbook
f3bb0f029466577eb6ae2f65253d518335a8d4b7862454445d32a8339499614d
Formbook
f73bd79fa45052bdee47d286e58107be584dd64d6cafb38362d494d9b388356f
Formbook
+ 14 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210407-bft289jfjs/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
6590b9ec4fa84e44c372fda26f47d6d58859d74869621c6bdd4086e6ae411379
MD5 hash:
95dfa1a9015a17a1d49b4faa3f3d999d
SHA1 hash:
427b72727b28436554d0443d797f19b2ea37cc16
Link:
https://www.unpac.me/results/e0f072c4-57fc-437e-a5f6-21c941a31556/
SH256 hash:
b49f6a646a9c6cdc0456310e02695f338b0a9fe352a7b8edbdd3ed8e1ffc069d
MD5 hash:
6ebcbf9650401abe10966f47a7d98d76
SHA1 hash:
873f872c3035b3e06cfe8619cf3fd61ffd70dcf6
Link:
https://www.unpac.me/results/e0f072c4-57fc-437e-a5f6-21c941a31556/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.56
Link:
https://yomi.yoroi.company/submissions/b49f6a646a9c6cdc0456310e02695f338b0a9fe352a7b8edbdd3ed8e1ffc069d

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe b49f6a646a9c6cdc0456310e02695f338b0a9fe352a7b8edbdd3ed8e1ffc069d

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/132880/

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