MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651
SHA3-384 hash: 9e821be7fd9c9e0d6f5d4eb3cca009891d9b86a912b7a764bddfd4d3a0f042b49756268dd234577ecc4a0a25023bdf76
SHA1 hash: a5b550d6b41ad1cd9287d2892a65ac856de1bebf
MD5 hash: 4aac66abd3deb77faf44d3fb5884f0a6
humanhash: undress-violet-romeo-twenty
File name:4aac66abd3deb77faf44d3fb5884f0a6.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:716'288 bytes
First seen:2021-01-12 07:07:39 UTC
Last seen:2021-01-12 14:25:31 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:cYDVEu7AAoopPekg92QS21/wrTJsBm+8drc9zn/lkHFmecm:cYBB3vekg90M/M2mATl4mp
Threatray 10 similar samples on MalwareBazaar
TLSH BAE4BF0021BC6FF3EA3E87F42646520557FA3A1FA4AEE1B44CD134DB22A6F854615BC7
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
118
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4aac66abd3deb77faf44d3fb5884f0a6.exe
Verdict:
Malicious activity
Analysis date:
2021-01-12 07:12:01 UTC
Tags:
trojan formbook stealer sinkhole
Link:
https://app.any.run/tasks/3356fcdd-106d-40ef-a5f6-b3cdcd07995a

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/111393/
Detection(s):
SecuriteInfo.com.Trojan.Siggen11.57608.35.14800.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Forced shutdown of a system process
Enabling autorun by creating a file
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/578672
Signature
.NET source code contains potential unpacker
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)
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 ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 338385 Sample: 0XrD9TsGUr.exe Startdate: 12/01/2021 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 9 other signatures 2->50 10 0XrD9TsGUr.exe 6 2->10         started        process3 file4 32 C:\Users\user\AppData\...\emozgtRJhjspJ.exe, PE32 10->32 dropped 34 C:\Users\user\AppData\Local\...\tmpF0D5.tmp, XML 10->34 dropped 36 C:\Users\user\AppData\...\0XrD9TsGUr.exe.log, ASCII 10->36 dropped 60 Writes to foreign memory regions 10->60 62 Injects a PE file into a foreign processes 10->62 14 vbc.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 2 other signatures 14->70 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 38 6983ylc.com 102.134.35.144, 49764, 80 sun-asnSC South Africa 19->38 40 cleitstaapps.com 162.241.60.214, 49753, 49771, 80 UNIFIEDLAYER-AS-1US United States 19->40 42 23 other IPs or domains 19->42 52 System process connects to network (likely due to code injection or exploit) 19->52 25 ipconfig.exe 19->25         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 25->54 56 Maps a DLL or memory area into another process 25->56 58 Tries to detect virtualization through RDTSC time measurements 25->58 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651/
Threat name:
Win32.Trojan.Bulz
Create hunting rule
Status:
Malicious
First seen:
2021-01-12 07:08:11 UTC
AV detection:
11 of 46 (23.91%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=jk75xeyv2u2k7xeza66pg2orlijb4awubxdxfxwomxpg5yvn4ziq._file
Verdict:
unknown
Similar samples:
06874ef73df2968a28b4c4ecefc2d96d520941eeb8f447f76767ecdfd5a59b79
Formbook
08c29dfa0ccb747751c5ff3ccde88f7f8a5a87152121f75f60a886b14e86bf00
Formbook
1b467c02c56a9130e3fb9e62e0ee62aa6b950845c9858f95656e659b814699c3
Formbook
5698c404ebbbf259f26b255d38bca46b2fac819390f766582b3184752c64bcf4
Formbook
702554b4a0770d70bd5972318d2294ef2b26001595b574d122264b8c1793457c
Formbook
992ad3ca073b6c7fd4de4a7b3d7139c7d794da8b0c2420963d802374c3ed968c
Formbook
9fecb65659cb47a10afab901b14904f54384f5481e0ef0331e009bfc580cfe29
Formbook
a5eb38594eb57ed5010a258b0f35aa3647243e8eb5ba4474eee9808abcaeb149
Formbook
d28c56accd73a0c2d4c5a62a288ae12af64ee719ac6060ef2c7ea9be3c5d400f
Formbook
dd647e98e0bd3b1627a0385970c38cd046883967f39dbf9fe416d5300e8e310a
Formbook
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210112-f3rtwqyvtj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.herbmedia.net/csv8/
Unpacked files
SH256 hash:
4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651
MD5 hash:
4aac66abd3deb77faf44d3fb5884f0a6
SHA1 hash:
a5b550d6b41ad1cd9287d2892a65ac856de1bebf
Link:
https://www.unpac.me/results/ed58efc8-ca90-4e51-8fda-8dcd0eda8663/
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
Link:
https://www.unpac.me/results/ed58efc8-ca90-4e51-8fda-8dcd0eda8663/
SH256 hash:
5634149983ee7da88ea0bca842fe4fac814f40e4de05e05a848eddc5e90b6646
MD5 hash:
82a2af56f01b905ac3b3fb3e5340fcf2
SHA1 hash:
66535d41d518ec01d2907127194ba737bd5bbd6e
Link:
https://www.unpac.me/results/ed58efc8-ca90-4e51-8fda-8dcd0eda8663/
SH256 hash:
cf03d88cc1b7f472176164f81f85e80be1923031844f157de28bfe3f7c983868
MD5 hash:
282ac604229ba63d2e37255cae871674
SHA1 hash:
b7a8efccf802bf8a99fced2f87d16ea51c6fa336
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/ed58efc8-ca90-4e51-8fda-8dcd0eda8663/
Parent samples :
7052f92dce4eaee0a7a7046c6529d6ebc79ddb2ee6e487cf34c6c7cd5dfea6ee
0a909cbfd2a1c352fbd9eb58f0623302fde6975668631cf5b0b294716b91b189
d28c56accd73a0c2d4c5a62a288ae12af64ee719ac6060ef2c7ea9be3c5d400f
4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651
9548c6a9da2d6cee9d27565c0055be4429cabfae9287ab3e525aaba66fd67032
2abb16d594f4b36fc8b8aab8cab7736350421c619cec8e12e8975e87f7a99faa
767b1b32d4ac4cec73967590ca5b28c3e0f4d709c0773e3f4021774f15a2483a
57fcc02e839d4ae0b8965ed55738960a952006f5e70ee1317f2bfacb97a43a5f
2d876129c69f0f4be0c87aeb20cdc38ae8f5db29bea6f87807946b89e0b61a50
285b8a6638f87b87204ba68570315a41570229ce3f7ecb2014437aee9e0d5875
1a1316858bdc617d23e0330ddcde1958d2e95a083fa04020675ad4fb01780c46
486035f5d7f5cffc2c03aee2ecb06252449dc9330cae4b8fb35662010f59eab8
45edd72b7b04c327b5c5278a3074d6e0bccbdf2ece95c524f1e5342bd6910dcf
4996310387ecc6608c106ed08eaa2151f1fbe8f855f4b41c923c05f89e6eafcf
3682691140da912f7a282b23de9aaccffa2ad8178665e6a8ace9d745a8fb8cde
23d45e8af999c98cf3f241fe633ea391f057fe2223ca01a1d403906309defddc
d1a94322d53165f8a59fb1ba9309872100d115f0119dbf6892f75267c45dca92
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651

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:win_nymaim_g0
Create hunting rule
Author:mak, msm, CERT.pl

File information

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

Web download

Formbook

Executable exe 4abfdb9315d534afdc9907bcf369d15a121e02d40dc772dece65de6ee2ade651

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/948953/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/111393/

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