Analysis
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max time kernel
144s -
max time network
130s -
platform
windows10-1703_x64 -
resource
win10-20231020-en -
resource tags
arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system -
submitted
12/12/2023, 13:40
Static task
static1
Behavioral task
behavioral1
Sample
37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.exe
Resource
win10-20231020-en
General
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Target
37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.exe
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Size
7.2MB
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MD5
f71b2b613a07720e636b6349b89774ba
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SHA1
e1c5097e6f19926a33a5f5b60b50dea0becaec6d
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SHA256
37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386
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SHA512
18e080e7f512c5108e9e818252e95ebb3a8de03aacbec3f1616d2c7e4f703b49738bcbda133b64572b425f3245a7b9efb6af25e2fbf764f5c3615798a0d0805f
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SSDEEP
196608:Gxm50EF70ZaWLZ97vnC8LpS7+bI9cpSzj:wEt0Zak7aIA7kSzj
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 676 numgif.exe 1432 numgif.exe -
Loads dropped DLL 3 IoCs
pid Process 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp -
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 81.31.197.38 -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops file in Program Files directory 63 IoCs
description ioc Process File created C:\Program Files (x86)\numGIF\stuff\is-T1T2Q.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-QRJML.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-O5339.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-UKJ3N.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-U30UA.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-HMQ44.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-IICC2.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-NTDV4.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-8DSH5.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-I8DFP.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\plugins\internal\is-694UO.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File opened for modification C:\Program Files (x86)\numGIF\uninstall\unins000.dat 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-7FET7.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-5GT13.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-CCI3N.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-JFC67.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-47J2B.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-V0GFU.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-7G21N.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-595MJ.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-RQK47.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-OC4H0.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-NA2UM.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-SPSLU.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-KTG65.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-R0CRT.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-TQHBI.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-S80TM.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-M2LIT.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-AUVH5.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File opened for modification C:\Program Files (x86)\numGIF\numgif.exe 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-SD8IE.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-A7U0G.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-E4OM6.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-680QE.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-U7KRC.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-F3859.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\uninstall\is-PD8HU.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\stuff\is-UOSEN.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-TJ1P1.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-LV7CI.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\plugins\internal\is-L1237.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-EBRMA.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-STFHN.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-KVB4A.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-FSHI6.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-0VD7R.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-UDN68.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-AJK46.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-AHA3F.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-CUCOI.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\lessmsi\is-EA6VM.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\stuff\is-NOP4F.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-65AQJ.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-IO0AR.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\is-3ESN9.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\uninstall\unins000.dat 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\stuff\is-UEOEV.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-1BT5Q.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-266PD.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-BKMED.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-CMQQF.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp File created C:\Program Files (x86)\numGIF\bin\x86\is-8HTAU.tmp 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp -
Runs net.exe
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 3832 wrote to memory of 2604 3832 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.exe 71 PID 3832 wrote to memory of 2604 3832 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.exe 71 PID 3832 wrote to memory of 2604 3832 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.exe 71 PID 2604 wrote to memory of 4720 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 72 PID 2604 wrote to memory of 4720 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 72 PID 2604 wrote to memory of 4720 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 72 PID 2604 wrote to memory of 676 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 74 PID 2604 wrote to memory of 676 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 74 PID 2604 wrote to memory of 676 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 74 PID 2604 wrote to memory of 4840 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 77 PID 2604 wrote to memory of 4840 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 77 PID 2604 wrote to memory of 4840 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 77 PID 2604 wrote to memory of 1432 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 75 PID 2604 wrote to memory of 1432 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 75 PID 2604 wrote to memory of 1432 2604 37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp 75 PID 4840 wrote to memory of 3760 4840 net.exe 78 PID 4840 wrote to memory of 3760 4840 net.exe 78 PID 4840 wrote to memory of 3760 4840 net.exe 78
Processes
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C:\Users\Admin\AppData\Local\Temp\37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.exe"C:\Users\Admin\AppData\Local\Temp\37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Users\Admin\AppData\Local\Temp\is-H5FID.tmp\37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp"C:\Users\Admin\AppData\Local\Temp\is-H5FID.tmp\37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp" /SL5="$80224,7257737,121856,C:\Users\Admin\AppData\Local\Temp\37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2604 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\system32\schtasks.exe" /Query3⤵PID:4720
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C:\Program Files (x86)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -i3⤵
- Executes dropped EXE
PID:676
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C:\Program Files (x86)\numGIF\numgif.exe"C:\Program Files (x86)\numGIF\numgif.exe" -s3⤵
- Executes dropped EXE
PID:1432
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C:\Windows\SysWOW64\net.exe"C:\Windows\system32\net.exe" helpmsg 123⤵
- Suspicious use of WriteProcessMemory
PID:4840 -
C:\Windows\SysWOW64\net1.exeC:\Windows\system32\net1 helpmsg 124⤵PID:3760
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.1MB
MD557ced71d2e317eabb615aa41744d1b1f
SHA16cc65d30c5fd466c87947a037b4b334150cd07c6
SHA256063e3ba1e7b81c595bcda4226b7258730c769626de660452e5aefc7f0ad45737
SHA5122c76683fcacdbe5497fd042424f1ac4da0cd74f62f0516e1bc77487bce7fed98b21836582e6ed8eee157bf854bc550dec6e4697919cd21adf76ae400fcb98662
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Filesize
2.0MB
MD5bf8fb8a053ddfb535a0d5043e35bd62a
SHA1b0868c1276983612b2ba25a0c2a2edbdf7e2e091
SHA25620be7fd3f0fee5374c5f45be54ea7ee6689db55c4f722909ac0f3ebdac4a20f4
SHA51274b5561f40389bab770283c9cf32f5cc1b1316329a03a90ba71b5aafcdca43f3c0a94e0cbe7c430d67e472c87ce6e1d90d50282364fa810fb4a4cac77f2fb989
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C:\Users\Admin\AppData\Local\Temp\is-H5FID.tmp\37f5f175c29b3b3590bfc4ce0f42442e2b679d63cfdf991e733a780b8aabe386.tmp
Filesize687KB
MD5f448d7f4b76e5c9c3a4eaff16a8b9b73
SHA131808f1ffa84c954376975b7cdb0007e6b762488
SHA2567233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49
SHA512f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4
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Filesize
2KB
MD5a69559718ab506675e907fe49deb71e9
SHA1bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA2562f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
SHA512e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
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Filesize
19KB
MD53adaa386b671c2df3bae5b39dc093008
SHA1067cf95fbdb922d81db58432c46930f86d23dded
SHA25671cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38
SHA512bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303