MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bc1a39fab39f372baddb7b2b12553e4c687a099d605892704daefdae5ed4995f. 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: 10


Intelligence 10 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bc1a39fab39f372baddb7b2b12553e4c687a099d605892704daefdae5ed4995f
SHA3-384 hash: 54d6ef73e605716b66f10652676bd2d68e8403f94b405dd4b91faed5fcd2b97370159f55bb663a518e03ad4c13c69ba2
SHA1 hash: 01bb99946b1db274dd9c6cf73354ba0085592805
MD5 hash: c770f9610fe83dd64ff1482e1fb32559
humanhash: golf-beer-helium-yankee
File name:c770f9610fe83dd64ff1482e1fb32559.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:654'848 bytes
First seen:2020-12-15 17:37:39 UTC
Last seen:2020-12-15 19:32:35 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:uM0X0dn+9AgofGYNTIDhDZj+QRGpMyCWslmy/jT+D9:uFXanEqfGYe8
Threatray 3'116 similar samples on MalwareBazaar
TLSH E2D45B242AEE9029F1B3BF754BD4B596DBAEFE633707D41E1480138B0723A41DE91639
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
202
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c770f9610fe83dd64ff1482e1fb32559.exe
Verdict:
No threats detected
Analysis date:
2020-12-15 17:46:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/a202a010-d910-40b3-bc12-928fa5bcb6d3

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/108205/
Detection(s):
SecuriteInfo.com.Variant.Barys.11488.27488.3175.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
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/563585
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Svchost Process
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 330876 Sample: athwIp3L1t.exe Startdate: 15/12/2020 Architecture: WINDOWS Score: 100 38 Malicious sample detected (through community Yara rule) 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 Yara detected AntiVM_3 2->42 44 6 other signatures 2->44 10 athwIp3L1t.exe 3 2->10         started        process3 file4 30 C:\Users\user\AppData\...\athwIp3L1t.exe.log, ASCII 10->30 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 56 Injects a PE file into a foreign processes 10->56 14 athwIp3L1t.exe 10->14         started        17 athwIp3L1t.exe 10->17         started        signatures5 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 19 explorer.exe 14->19 injected process8 dnsIp9 32 www.realoneathletics.info 192.185.4.145, 49769, 49783, 80 UNIFIEDLAYER-AS-1US United States 19->32 34 198.54.117.210, 49774, 49786, 80 NAMECHEAP-NETUS United States 19->34 36 24 other IPs or domains 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 svchost.exe 19->23         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bc1a39fab39f372baddb7b2b12553e4c687a099d605892704daefdae5ed4995f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-12-15 17:38:08 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0e1253abec933b14f592f8ab6fcfaeba8fb3b9d24f9ef2a7021345d2fc738b3f
Formbook
17c7eb5988e11440ac66fccc2a9c8ada3ab1e7183480ddd05ee3a47b19a95f9b
Formbook
29c9884d02cba2c6ab0a72af878c9f1c2768d96b912f5847608fc040f5f98083
Formbook
2e7e018ee5838bf8450f343923ba4ce6c1282ed1b727fc4ab5cbe69b6204fca2
Formbook
6d923f02c2252e4a2ea98a8685fc5237354e2853791855f1a451a390dd85cbb9
Formbook
754b53cd03dcc7c3d854a9628e5d01447fd778aae73f7890b5f7527ad4bd76ea
Formbook
8d604d5419d217ecd6a9d5b4917e441069b433c8429323600a18b36df608f751
Formbook
b28f4495e2cda5a5fef0408701a136d820c7cf2e7a45dd101e70b31458e31530
Formbook
d5693be3b4e0d78485c00d409aedbe5cf18fd22c413fac48b44a4eaa0bbda668
Formbook
e0f3cc45f5f9d758b91fc99dbc5b838e8658fa28bad234825318e18d11806681
Formbook
+ 3'106 additional samples on MalwareBazaar
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/201215-9d45abrh1x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.switchtoambitwithmirtha.com/jskg/
Unpacked files
SH256 hash:
a0846b2ab2701f185bd24a7004d3b78152378ed95cdefee52773e97351489d4a
MD5 hash:
3b9885d3c96b5febd756ebf5e890679f
SHA1 hash:
224a81c71032276f87660ed39a47e5a3c027d352
Link:
https://www.unpac.me/results/803d550f-70b7-4452-b271-f0ace6759475/
SH256 hash:
750b296e77cc56e327d5fd402d5ce88578278e3fcf5aad11a3f0ba23db271ddf
MD5 hash:
d2e65d30f7afed232704058dee3b210a
SHA1 hash:
82519c982db5e58394a91b8f1d79057d7ec375c2
Link:
https://www.unpac.me/results/803d550f-70b7-4452-b271-f0ace6759475/
SH256 hash:
21afc398aa7e05ed3eb9a23a011d0b7572a1178b33dba6b865638fdae2ffd461
MD5 hash:
579f71a60d426d5cfe9b40b74b1d5a52
SHA1 hash:
f130426ab206b90d5b04d47727a27dc5f0749ec1
Link:
https://www.unpac.me/results/803d550f-70b7-4452-b271-f0ace6759475/
SH256 hash:
df34896e3fd34706d5762504201668eac1a7696dcbf3a7c94c787a57f3b1db30
MD5 hash:
5ca8da7d7bf9f48f68e68e952eae8ae2
SHA1 hash:
9be7d8ea4d44bb2ea9f5453bf8f2d25d2f96e4d5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/803d550f-70b7-4452-b271-f0ace6759475/
Parent samples :
bc1a39fab39f372baddb7b2b12553e4c687a099d605892704daefdae5ed4995f
f64ecad45aae27f037e819a6adfaeebbdf0f769690a46a89a29d4f0da22b6cd4
435c72e11302f932b44c88d26c8b7f9dd3f803cfe746dd508fe5ef25218c6477
da5e4f1f4945b3d49a38123f8c80ac861b5ab7720efec6dc194a1e6dbec0fdc2
SH256 hash:
bc1a39fab39f372baddb7b2b12553e4c687a099d605892704daefdae5ed4995f
MD5 hash:
c770f9610fe83dd64ff1482e1fb32559
SHA1 hash:
01bb99946b1db274dd9c6cf73354ba0085592805
Link:
https://www.unpac.me/results/803d550f-70b7-4452-b271-f0ace6759475/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Remcos
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/bc1a39fab39f372baddb7b2b12553e4c687a099d605892704daefdae5ed4995f

File information

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

Web download

Formbook

Executable exe bc1a39fab39f372baddb7b2b12553e4c687a099d605892704daefdae5ed4995f

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/898216/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/108205/

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