MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
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SHA256 hash: ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a
SHA3-384 hash: f4a1993fcc5bbc0c0484470bffe64d50c97498592e53cdb37453859a13a91aa76d5e3e2b0f14aebf63bdf080d8dc53ce
SHA1 hash: 06b5a1c77c5965950b2b2cccfad6bad9b7579d53
MD5 hash: 7f11fbaa2959fa9da839e42e2e52619a
humanhash: queen-solar-fruit-happy
File name:Yglwulsvxiiswr.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'199'616 bytes
First seen:2023-10-04 07:21:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0d3c91eaf5fe15612d88e7ce6d9c9b4f (5 x Formbook)
ssdeep 24576:1RxK0h0gJ+HYS9XsILx0P83H5M8OG31WYm3:1RN+Hm3
Threatray 909 similar samples on MalwareBazaar
TLSH T1DB456C24B7B20DB1F5AE3574CD0B97F01DFF67A9A900689992B53D1B2CB23507A2502F
TrID 36.1% (.SCR) Windows screen saver (13097/50/3)
29.0% (.EXE) Win64 Executable (generic) (10523/12/4)
12.4% (.EXE) Win32 Executable (generic) (4505/5/1)
5.7% (.EXE) Win16/32 Executable Delphi generic (2072/23)
5.6% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon d0a0a0a8a8a8a8d0 (5 x Formbook, 2 x DBatLoader)
Reporter TeamDreier
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
332
Origin country :
DK DK
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Yglwulsvxiiswr.zip
Verdict:
Malicious activity
Analysis date:
2023-10-03 11:09:01 UTC
Tags:
dbatloader formbook xloader stealer spyware
Link:
https://app.any.run/tasks/aeb5c950-c0bf-4457-bcdb-42e148515490

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Inject4.61770.14970.23433.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Creating a window
Sending a custom TCP request
DNS request
Creating a file
Launching a process
Creating a process with a hidden window
Launching cmd.exe command interpreter
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Gathering data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control greyware keylogger lolbin overlay
Link:
https://www.filescan.io/uploads/651d12aa723bacbcf8d4ad6f/reports/09e04630-7619-40bc-8574-c7d49a669441/overview
Verdict:
Malicious
Labled as:
Barys.Generic
Link:
https://www.hybrid-analysis.com/sample/ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/eb5b1cb7-d06a-4dd9-b14a-e7a8308d5f58
Result
Threat name:
DBatLoader, FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1319255
Signature
Allocates many large memory junks
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Drops PE files with a suspicious file extension
Found malware configuration
Injects a PE file into a foreign processes
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 domain / URL
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
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected DBatLoader
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1319255 Sample: Yglwulsvxiiswr.exe Startdate: 04/10/2023 Architecture: WINDOWS Score: 100 38 www.yuanlaigou.net 2->38 40 www.tincoco.net 2->40 42 15 other IPs or domains 2->42 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Found malware configuration 2->54 56 8 other signatures 2->56 11 Yglwulsvxiiswr.exe 1 2 2->11         started        signatures3 process4 file5 36 C:\Users\Public\Libraries\Yglwulsv.PIF, PE32 11->36 dropped 74 Drops PE files with a suspicious file extension 11->74 76 Writes to foreign memory regions 11->76 78 Allocates memory in foreign processes 11->78 80 2 other signatures 11->80 15 SndVol.exe 11->15         started        signatures6 process7 signatures8 90 Modifies the context of a thread in another process (thread injection) 15->90 92 Maps a DLL or memory area into another process 15->92 94 Sample uses process hollowing technique 15->94 96 2 other signatures 15->96 18 explorer.exe 16 27 15->18 injected process9 dnsIp10 44 americanworldsolutions.com 15.197.142.173, 49995, 80 TANDEMUS United States 18->44 46 www.delamar.one 54.38.220.85, 49777, 80 OVHFR France 18->46 48 4 other IPs or domains 18->48 58 System process connects to network (likely due to code injection or exploit) 18->58 22 Yglwulsv.PIF 18->22         started        25 cscript.exe 18->25         started        27 cmd.exe 18->27         started        signatures11 process12 signatures13 60 Antivirus detection for dropped file 22->60 62 Multi AV Scanner detection for dropped file 22->62 64 Writes to foreign memory regions 22->64 72 2 other signatures 22->72 29 colorcpl.exe 22->29         started        66 Modifies the context of a thread in another process (thread injection) 25->66 68 Maps a DLL or memory area into another process 25->68 70 Tries to detect virtualization through RDTSC time measurements 25->70 32 cmd.exe 1 25->32         started        process14 signatures15 82 Modifies the context of a thread in another process (thread injection) 29->82 84 Maps a DLL or memory area into another process 29->84 86 Sample uses process hollowing technique 29->86 88 Tries to detect virtualization through RDTSC time measurements 32->88 34 conhost.exe 32->34         started        process16
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a/
Threat name:
Win32.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2023-10-03 06:45:46 UTC
File Type:
PE (Exe)
Extracted files:
48
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vqackg4luw332im3wi53ke2kchyscxizvkqjcxs2adlza2igwgna._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1c120ac2bc08fbd5455f3d5a47dd87ce73e40fa4b0f7a3cdb2d41a85c800e603
Formbook
21140ae60aa6ba79a4d6cfc5aa5fd4cf4aa08ac5a522a4a2393f4c9552224529
Formbook
247c8156cf06c5d9dec7d5fa0b158339110b556d41b0750bff34d36086554746
Formbook
795998e9064cb981d6a40a34fbeee48381121ea7ac7175ffe5b506b11cf843d7
Formbook
b835220d18074195e2df569e8088470b7f400c334aef1dd54dfe30e2019dab7a
Formbook
be001461acb26523b913f93761b14f56fc7dd7f256e90ae53b40f0b40dd859b7
Formbook
dc999aa2db84e4f91022be10a55e971c49da82960027b7482b44856fee46f9cc
Formbook
f34fd6bbeea3da4838e068cb7aa4f867b3d4d8c435dcc8926895d1c033bd7622
Formbook
f3c99b21d43e967be5b3e53e70050b9d6dce181fe5415f9825b512850ecb0b52
Formbook
+ 899 additional samples on MalwareBazaar
Result
Malware family:
modiloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:modiloader campaign:fadc persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/231004-h68rqabg88/
Behaviour
Gathers network information
Script User-Agent
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Adds Run key to start application
Formbook payload
ModiLoader Second Stage
Formbook
ModiLoader, DBatLoader
Unpacked files
SH256 hash:
ef5bc3ed536de4c9a5c02ebf475f01b810728afad6c064a236bcd71a985d20a3
MD5 hash:
610239ed40a95c217783a309c03fe8ee
SHA1 hash:
ef7188222285bb5f871bd4bf9a85fdcb0f42b186
Detections:
win_dbatloader_g1
Create hunting rule
Link:
https://www.unpac.me/results/76c55126-1827-4745-be32-d7d5baa45ca9/
Parent samples :
25a3c31cfefacd58b5175960891d0c14d3201a99ef57011186849e0fd50c7174
bfb3b7f5c73f6c15389fe5240d0388044d3663724cfe6461b9fabe2639fb045d
347cfd6ac482e6562d6a8bb4029ed095936599ee3de2498f91171c135f9b4632
877cb8703ca12f80a724652ad436b8b7678e718c4ee009d61b47217c8443180d
914741181590f27bfb7f365db3e72c8a65e3b1744a80d614ef568b10f059fb46
ddbdee246ac529b92bceff0074cf409fc19bd1d532709859b209cc586adc2e04
b7fe0485eabd5401adf1fb4aff0fe9123afdf6811ce07af75240734a0dd2a007
00174652cb6423c2ab0160ebbaa0b5918daa97c297ca39526232cb06e60c7ad9
94de4dc571040c2f3d1f9690384778017cf94e58d2f4b25b8e9d9568210eb1ca
0951a4a0aa2cfa91d5477895e6302d68fcddd490691787e63261e7bf9982e5cd
8cde60f804a160f6fdaf788a4ba9a885cf178cebe4829eafbcd3fa1fb5a78185
187a6943ad793f2a29f5be27a89784cb7b30a9d376163dd8e4e89d49a7d9930e
d235544a0a7ce8c34d200c5481a953f5d1b365a6323e6f3a5e6fe74f581504b2
aca4ee8dbc2166326ba7506f08e2faa3a886ce3eb3da9a4e8c9cec9a52977dc3
35f89039ffb13c341539e617774026a55734178b329f9a0857e0d54332052256
7b798cee09b1e65922731c0ac1ddc080ce0560fe68a01c70e19bcc1bb59cd047
0319a48c8448490e40da6237039f578e079c17495c32356e5a03123976af3486
dae2da978ef889f28bb96b4b9f0519f4d04a62517bbefc55320ea8d81c70e3e8
42c0bbf88390cafcc303696b01420c9233df8822285de01dd73a1dfe8b5b11d8
ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a
0e8a32d068ae867e5296c365c837f273bcd56c48ce93130bb501c25d8e558f39
bc6ad0214e356e543684e62a978f0a9c64bbe3282b2d11f31243e7dbde017664
43af3e8acb9ddd2f5f99107a4b715b9ff684631e9d88847034b279b2a2621fc6
127e920304ce4f148d95d1b2522623262a85b804d682d33df89f1238eac1ffc9
3feb7b95494db81ea47763a9d772e6eb8c8b2bfdf5aeec3a9282c203482839bc
240faad2172324c119d325a9396e55f0e635bac9ddf9442340439fc49fdd8bab
f75bcc250ddc6772d6aea9331879d102ee83b9e6b707e252d4771b02c5df9001
27c3f876bb12269c818bc4c2efc8c741ca3b6b1b618f631d951e59fa62be90d5
24203f6ff9c3a37b83435aba2835c30d59a502a2238d5ee988d06a5042e23b19
846cde55897a66226b2f27e8449a44e2a43104674d4c14b2dd9a937c1d819f21
218b06f1a24c05c5fa1480a3c0153957800fb882d977acd28eb4d853c976fb7a
fecb7826eb9472fa8b7a79c1029720e19f8e2deb1d2c57c8c6ebf66232ac7981
1e991070923ebc777c64777b1a9be7caf9b33286d73b66fb661e0d846298f1ca
9a58cfffad0cd6dc31da5ce2d58da98c35d0e6be3461db38b78fe11692bb37a1
b15a8668037928b4cc574506dc96518162693d531de044e7adf67461a123b1e5
c81c51e79ec83b510a584da82e7fb404eb3f5d371a9d2c05fe1f0b7c7356803a
0348b7181e838a339237fade5062e7670e6fdf2ccca4814ae7f97acec60cb8b2
5f90bddd59fd40b3ea452237ab912374f13893eae1f70fc923fa3feff7f4c850
856f022b0eec4d9db9d5f0eafab09ca82c12644d849984696eca9dd9259fb0b3
6315748f31eb1c22f2d5b4d8bf4309691c06986676db552a387c90a3c3f467b0
5a7a2248d2e7ef9b64a4210bae505a0a86a55d560f4f1c115c235a49f106c188
036c6898af5b3d4003e544deb66eb29bd5a83c43903aac4667eb77e42169a6c4
5713b67f81b494c23cde9b38b3216f504647a6e5a0297adc10bb08895e4ed01a
SH256 hash:
7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 hash:
c116d3604ceafe7057d77ff27552c215
SHA1 hash:
452b14432fb5758b46f2897aeccd89f7c82a727d
Link:
https://www.unpac.me/results/76c55126-1827-4745-be32-d7d5baa45ca9/
SH256 hash:
ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a
MD5 hash:
7f11fbaa2959fa9da839e42e2e52619a
SHA1 hash:
06b5a1c77c5965950b2b2cccfad6bad9b7579d53
Link:
https://www.unpac.me/results/76c55126-1827-4745-be32-d7d5baa45ca9/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac00251b8ba5/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a

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:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

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

Malspam

Formbook

Executable exe ac00251b8ba5b7bd219bb23bb5134a11f1215d19aaa0915e5a00d7906906b19a

(this sample)

  
Delivery method
Distributed via e-mail attachment

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