MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a83afdd193623f46ac870f04455f2176d64466c5e2d3cd92eda0498de29f0417. 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: 14


Intelligence 14 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a83afdd193623f46ac870f04455f2176d64466c5e2d3cd92eda0498de29f0417
SHA3-384 hash: aeb7ada0bda82dc92a67ed2c77a4418c89b6379703b7e87e118be0e9087a3515104701388ff8e01cf74cc844221b6de9
SHA1 hash: f3a3f8f53d2b7b751f461b5c04941a4740344511
MD5 hash: 94f327c3dbb3880dfec7693a1e1ffd72
humanhash: early-july-hotel-uniform
File name:DHL Shipment_xlsx.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:297'082 bytes
First seen:2022-02-14 03:27:04 UTC
Last seen:2022-02-14 13:43:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:owWIimwHcgfPiIXid9jNo6xg6rt3LrzC+MMmEMZc/:aIJwHcLGsji/Y3LglEMW/
TLSH T1C354129B77CB899FDA020970CA7F8DA3F37BD93422104287675D4FCE59619C3981E642
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
217
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/241228/
Detection(s):
SecuriteInfo.com.FakeAV.CXA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Searching for synchronization primitives
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
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/3ab37887-1112-4df7-9947-b61f63a0ac8e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/939078
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspect Svchost Activity
Sigma detected: Suspicious Svchost Process
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 dnsIp2 2 Behavior Graph ID: 571556 Sample: DHL Shipment_xlsx.exe Startdate: 14/02/2022 Architecture: WINDOWS Score: 100 34 www.webceo.info 2->34 36 webceo.info 2->36 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 7 other signatures 2->58 12 DHL Shipment_xlsx.exe 19 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\...\uhdabgqf.exe, PE32 12->32 dropped 15 uhdabgqf.exe 12->15         started        process6 signatures7 68 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->68 70 Tries to detect virtualization through RDTSC time measurements 15->70 72 Injects a PE file into a foreign processes 15->72 18 uhdabgqf.exe 15->18         started        process8 signatures9 44 Modifies the context of a thread in another process (thread injection) 18->44 46 Maps a DLL or memory area into another process 18->46 48 Sample uses process hollowing technique 18->48 50 Queues an APC in another process (thread injection) 18->50 21 explorer.exe 18->21 injected process10 dnsIp11 38 megaconstructionofct.com 108.179.243.105, 49808, 80 UNIFIEDLAYER-AS-1US United States 21->38 40 www.smokinwaffles.com 21->40 42 3 other IPs or domains 21->42 60 System process connects to network (likely due to code injection or exploit) 21->60 25 svchost.exe 21->25         started        signatures12 process13 signatures14 62 Modifies the context of a thread in another process (thread injection) 25->62 64 Maps a DLL or memory area into another process 25->64 66 Tries to detect virtualization through RDTSC time measurements 25->66 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a83afdd193623f46ac870f04455f2176d64466c5e2d3cd92eda0498de29f0417/
Threat name:
Win32.Trojan.Woreflint
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Status:
Malicious
First seen:
2022-02-14 03:28:09 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
23 of 27 (85.19%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=va5p3umtmi7unlehb4cekxzbo3leizwf4lj43exnubey3yu7aqlq._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:by73 rat spyware stealer trojan
Link:
https://tria.ge/reports/220214-d1cd4seca8/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook Payload
Formbook
Unpacked files
SH256 hash:
fcaa4745a6e0e18276b4755fe192422558fd825f6d8e4dfaa4410e0fce5eb2e5
MD5 hash:
b3006620df07af3e924ae803931bd0a9
SHA1 hash:
660288cb2297baf9c537e440e8bff3bd80277e2e
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/021b7d4a-ab2b-486d-9924-b7c8ecc60a1d/
Parent samples :
f556af7cd24cc02eba24924d19c42966a1a98b84dfabd78c523c55f492d54acd
9bece1a915a3849979795cea77094ccf1c1bc8d93b33ef05a84c8d56988c2816
a83afdd193623f46ac870f04455f2176d64466c5e2d3cd92eda0498de29f0417
7e63ecb107ecbb32d253e5c84cf5a964f82880cfde059f8d6b11cf89d6921687
0736da1f42878cc4630f0b855fb638e76989fc53513fac93061cfdd49f9c94cf
1363922a984440ab7ffb7f1f4872704bc6a96008412d399728b20cc8cb1e4abb
45a19ea1dcf965e6baa12c63ab7be3bf7c550a7573f40a7af04698d56af7a706
SH256 hash:
eaeaaf02548ef9b093953a1db75ac089535f9b4f3535fae7c65fc765da59e9cb
MD5 hash:
8df969044f578d31d1ab56dd9f5dc2e2
SHA1 hash:
362ef8a8120f52bf554721d2f0b7a28cd74c8fcc
Link:
https://www.unpac.me/results/021b7d4a-ab2b-486d-9924-b7c8ecc60a1d/
SH256 hash:
a83afdd193623f46ac870f04455f2176d64466c5e2d3cd92eda0498de29f0417
MD5 hash:
94f327c3dbb3880dfec7693a1e1ffd72
SHA1 hash:
f3a3f8f53d2b7b751f461b5c04941a4740344511
Link:
https://www.unpac.me/results/021b7d4a-ab2b-486d-9924-b7c8ecc60a1d/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a83afdd19362/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a83afdd193623f46ac870f04455f2176d64466c5e2d3cd92eda0498de29f0417

File information

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

Malspam

Formbook

Executable exe a83afdd193623f46ac870f04455f2176d64466c5e2d3cd92eda0498de29f0417

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/241228/

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