MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c12bd972fbf3301e40fa75c3e295a8bd0233bf1f5fa100e79ab7f6755f7b6788. 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 File information Comments
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SHA256 hash: c12bd972fbf3301e40fa75c3e295a8bd0233bf1f5fa100e79ab7f6755f7b6788
SHA3-384 hash: e5ce6c9fc0d20ebe3746e4f006986507ce8c55b606a164be5e786847ad276a145b8094dba110be5a7f8a4ecea03ca3ac
SHA1 hash: bc1004564de46d39269e7c844d1094f869c988d8
MD5 hash: 734e49a5eb9193a08ab2a1f66c4ec254
humanhash: island-jupiter-mexico-ink
File name:rro4126.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:263'024 bytes
First seen:2021-10-11 12:02:29 UTC
Last seen:2021-10-11 13:53:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:F8LxBsrsWflA8ZsgGbNjZSgG/OgZj636ggHVviSMdEi9i4:/pflA8aZ8/H56EV60i9i4
Threatray 10'256 similar samples on MalwareBazaar
TLSH T12B44224572E28D77F0A51A30C134A678FB7AE8665521AD87C3F0BE7E392178B0D16B34
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
146
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rro4126.exe
Verdict:
Malicious activity
Analysis date:
2021-10-11 12:09:41 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/9764c0d1-f9e5-472f-a56e-4fe08caa9b2a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/196603/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.9827.27229.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Creating a window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/616427f99fb4d8593d618518/reports/4bcad0de-3229-4c78-b0ab-57b5f1924a28/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4d2c9561-fc4f-443a-a4f3-cbc60763993e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/867950
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
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
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 500378 Sample: rro4126.exe Startdate: 11/10/2021 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 7 other signatures 2->50 9 rro4126.exe 17 2->9         started        process3 file4 26 C:\Users\user\AppData\Local\...\ppaogsrxq.dll, PE32 9->26 dropped 52 Detected unpacking (changes PE section rights) 9->52 54 Tries to detect virtualization through RDTSC time measurements 9->54 56 Injects a PE file into a foreign processes 9->56 13 rro4126.exe 9->13         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 13->58 60 Maps a DLL or memory area into another process 13->60 62 Sample uses process hollowing technique 13->62 64 Queues an APC in another process (thread injection) 13->64 16 wlanext.exe 13->16         started        19 explorer.exe 13->19 injected process8 dnsIp9 34 Self deletion via cmd delete 16->34 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Tries to detect virtualization through RDTSC time measurements 16->40 22 cmd.exe 1 16->22         started        28 www.skillsbazar.com 19->28 30 www.schwa-bingcorp.com 19->30 32 2 other IPs or domains 19->32 42 System process connects to network (likely due to code injection or exploit) 19->42 signatures10 process11 process12 24 conhost.exe 22->24         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c12bd972fbf3301e40fa75c3e295a8bd0233bf1f5fa100e79ab7f6755f7b6788/
Threat name:
Win32.Trojan.RemcosRAT
Create hunting rule
Status:
Malicious
First seen:
2021-10-11 11:34:01 UTC
AV detection:
17 of 27 (62.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yev5s4x36myb4qh2oxb6ffnixubdhpy7l6qqbz42w73hkx33m6ea._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
2361714a402b085426e5712ff07a8ada008ae9bf76e8ee248cc7ca651c7ac752
Formbook
3cc97e74a5fe7f0cea8e82512a8923a4dc1bb1afe702bb53876136b5362fbfe3
Formbook
7249d67d49a862e577120d3125e33566c61241969b4f48d701de97a5fe0abc04
Formbook
90661f85c7864f95181eceebf32eafd0b4b166aebdfdf5529edfc3a3dd6c0715
Formbook
90e6f10a0caabd250a9d43d12982b5861ec160177d99ad07ce68bd18d103736c
Formbook
d16da4e6a63f26601dd3c961f31708db79be1aead7cf3834fafa47095b1a45a6
Formbook
f840ca48e6381b385534156b8245c39dee4d1c95e18569c91b5537ff2f20aa7d
Formbook
+ 10'246 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rv9n rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211011-n72bxshbdp/
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 UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.cjspizza.net/rv9n/
Unpacked files
SH256 hash:
c12bd972fbf3301e40fa75c3e295a8bd0233bf1f5fa100e79ab7f6755f7b6788
MD5 hash:
734e49a5eb9193a08ab2a1f66c4ec254
SHA1 hash:
bc1004564de46d39269e7c844d1094f869c988d8
Link:
https://www.unpac.me/results/38957751-e9b1-4e9d-8d85-3c2a69db8ebc/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c12bd972fbf3/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/c12bd972fbf3301e40fa75c3e295a8bd0233bf1f5fa100e79ab7f6755f7b6788

File information

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

Malspam

Formbook

Executable exe c12bd972fbf3301e40fa75c3e295a8bd0233bf1f5fa100e79ab7f6755f7b6788

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/196603/

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