MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7bc7100b7f264478967c50cd333b481fe108f1edfd60db59ec277809781cc59c. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments

SHA256 hash: 7bc7100b7f264478967c50cd333b481fe108f1edfd60db59ec277809781cc59c
SHA3-384 hash: cef28f57b4c6d9e8f3276c4a0660ee858454e75c7ab758c728cda835f70bbd91a9248b21b5306cd2b86d2f173244d25c
SHA1 hash: 291892fc546e2c8fbe3ef2275ab7fc8769d9ed0d
MD5 hash: 53def552983bf7b221d950b04af48a4d
humanhash: seven-cola-vegan-may
File name:RFQ - JAKOB SELMER_pdf.exe
Download: download sample
Signature Formbook
File size:372'736 bytes
First seen:2021-11-09 11:49:10 UTC
Last seen:2021-12-07 17:08:44 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:HNDcvtBMkMcBEH+IPJUzgyXzdhuMVSYO1JhAGIp1+6RS+otAtFAZp:HCvtBTDBASBBVZsJh7IpInDZ
TLSH T1D484025BB758C52EC9A56132EC8F7B4007BCB9817DD3D32EAACD635E50623E2054368E
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
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
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
Performs DNS queries to domains with low reputation
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:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 518414 Sample: RFQ - JAKOB SELMER_pdf.exe Startdate: 09/11/2021 Architecture: WINDOWS Score: 100 36 www.focalpatio.com 2->36 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 9 other signatures 2->48 11 RFQ - JAKOB SELMER_pdf.exe 3 2->11         started        signatures3 process4 file5 28 C:\Users\...\RFQ - JAKOB SELMER_pdf.exe.log, ASCII 11->28 dropped 14 RFQ - JAKOB SELMER_pdf.exe 11->14         started        process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.bettersalud.info 103.224.212.220, 49787, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 17->30 32 www.ded5353.xyz 194.195.211.26, 49815, 80 NEXINTO-DE Germany 17->32 34 9 other IPs or domains 17->34 38 System process connects to network (likely due to code injection or exploit) 17->38 40 Performs DNS queries to domains with low reputation 17->40 21 mstsc.exe 17->21         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 21->50 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-11-09 10:57:17 UTC
AV detection:
24 of 44 (54.55%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:xc52 loader rat
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.ded5353.xyz/xc52/
Unpacked files
SH256 hash:
4157d0a14ea883e1186e89dd8670133b86c441b78adfe28beb336b8b1ad49bf0
MD5 hash:
8de24b02bfe185327dda4c82e334ea98
SHA1 hash:
f0c68d9222f31abe3f0b4d44db5598f4527cae62
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
3dcecadefc80498c2d2c50c8c2d1ede1301a12da1d7e6e708630131c25a73ef6
MD5 hash:
89cdcb81860b23d40fd8d6f9076f597f
SHA1 hash:
aa8ff9499c1670657252b62ca10fb949ec171c2d
SH256 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
SH256 hash:
7bc7100b7f264478967c50cd333b481fe108f1edfd60db59ec277809781cc59c
MD5 hash:
53def552983bf7b221d950b04af48a4d
SHA1 hash:
291892fc546e2c8fbe3ef2275ab7fc8769d9ed0d
Please note that we are no longer able to provide a coverage score for Virus Total.

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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

Malspam

Formbook

Executable exe 7bc7100b7f264478967c50cd333b481fe108f1edfd60db59ec277809781cc59c

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments