MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 503afb59d8192f6adb3e67db043eeb6459e8ec3fc117ef8e2f6690d5f0c4a12b. 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: 503afb59d8192f6adb3e67db043eeb6459e8ec3fc117ef8e2f6690d5f0c4a12b
SHA3-384 hash: 0ff68941348bb5ba784768cf6c3b746dc34c19cf83ea808f741b32368fe0924a41da98e4f93f56cff24de97c1316091b
SHA1 hash: ab97e2b2fed3f4afa265a4ee019fe1d80bd18465
MD5 hash: c54e31cb358e68f6c0a33a62c0e57b76
humanhash: four-vermont-stream-potato
File name:advance payment.exe
Download: download sample
Signature Formbook
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File size:732'672 bytes
First seen:2022-02-15 12:20:30 UTC
Last seen:2022-02-21 09:06:13 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'597 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:235k+LCgpZpCqLqe+a426OBunzDeu31NCvQdZcUkAsgaRZszwxg7QLL3y5K:Wa49dCqLqe+a426O0zhFuQ/vLaRZDIQO
TLSH T137F4014072B72B84C0761BFA84E6D6850BB9795E5127D63EDED230CC1C62BD18A3E637
File icon (PE):PE icon
dhash icon 0012360d4d1e8606 (19 x AgentTesla, 12 x Formbook, 4 x SnakeKeylogger)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
206
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/241603/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1197.27270.6880.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed update.exe
Link:
https://www.filescan.io/uploads/620b9ab4875593a3cccfee06/reports/642537dd-44a4-430f-8774-93b954fbb1a2/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/8d1db882-74a8-492b-b293-3d2d467e6b43
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/940060
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 572538 Sample: advance payment.exe Startdate: 15/02/2022 Architecture: WINDOWS Score: 100 33 www.thebuffgolfers.com 2->33 35 www.shashistyle.com 2->35 37 9 other IPs or domains 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 9 other signatures 2->51 11 advance payment.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\...\advance payment.exe.log, ASCII 11->31 dropped 63 Injects a PE file into a foreign processes 11->63 15 advance payment.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 39 carolwhilby.com 162.241.218.142, 49775, 80 UNIFIEDLAYER-AS-1US United States 18->39 41 www.tchatchellosa.com 172.67.135.202, 49782, 80 CLOUDFLARENETUS United States 18->41 43 6 other IPs or domains 18->43 53 System process connects to network (likely due to code injection or exploit) 18->53 22 msdt.exe 18->22         started        25 autochk.exe 18->25         started        signatures11 process12 signatures13 55 Self deletion via cmd delete 22->55 57 Modifies the context of a thread in another process (thread injection) 22->57 59 Maps a DLL or memory area into another process 22->59 61 Tries to detect virtualization through RDTSC time measurements 22->61 27 cmd.exe 1 22->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
xloader
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Link:
https://mwdb.cert.pl/sample/503afb59d8192f6adb3e67db043eeb6459e8ec3fc117ef8e2f6690d5f0c4a12b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-02-15 12:21:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
21 of 28 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ka5pwwoydexwvwz6m7nqipxlmrm6r3b7yel67drpm2inl4geuevq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
xloader
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Score:
  10/10
Tags:
family:xloader campaign:8gce loader rat
Link:
https://tria.ge/reports/220215-pjcjbsega4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Unpacked files
SH256 hash:
2a1c2225605de7ae1af8249a7c362d9827ecf128cffed42beda8ef7ad407519a
MD5 hash:
f0dc36a13dbab04584af5ee5feb1a629
SHA1 hash:
76f63d855339617265159d851bb884c85758126c
Detections:
win_formbook_g0
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win_formbook_auto
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Link:
https://www.unpac.me/results/07af6ca3-b5d5-44c7-9168-9de86336cbce/
Parent samples :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 hash:
63b6403c6ea1378c0ff49f069597b45496dba6c0161d240e64885ab6f0806d04
MD5 hash:
72b143fd989c37772556bf302ac33be1
SHA1 hash:
ee377db4778e70261d34f8210208069df41a12ef
Link:
https://www.unpac.me/results/07af6ca3-b5d5-44c7-9168-9de86336cbce/
SH256 hash:
da0562606fcd207c2210837f530f12836aa3b3cb975b948adf796e1183559859
MD5 hash:
3b1be96e74150c51b2d255551c987d77
SHA1 hash:
e7863c62a69eadba9539e6340f353c897e7bfc77
Link:
https://www.unpac.me/results/07af6ca3-b5d5-44c7-9168-9de86336cbce/
SH256 hash:
43283d600caab0d6311ea0cad8a1e152bbabe9708c39c3e9e8894883c49067b3
MD5 hash:
c8c9fa8e62024ca44be445da035ceabd
SHA1 hash:
4a6b19bc46b2ca3c54178bafa19b01d1c77209da
Link:
https://www.unpac.me/results/07af6ca3-b5d5-44c7-9168-9de86336cbce/
SH256 hash:
503afb59d8192f6adb3e67db043eeb6459e8ec3fc117ef8e2f6690d5f0c4a12b
MD5 hash:
c54e31cb358e68f6c0a33a62c0e57b76
SHA1 hash:
ab97e2b2fed3f4afa265a4ee019fe1d80bd18465
Link:
https://www.unpac.me/results/07af6ca3-b5d5-44c7-9168-9de86336cbce/
Malware family:
XLoader
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/503afb59d819/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/503afb59d8192f6adb3e67db043eeb6459e8ec3fc117ef8e2f6690d5f0c4a12b

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 503afb59d8192f6adb3e67db043eeb6459e8ec3fc117ef8e2f6690d5f0c4a12b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/241603/

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