7655628d4cf34b89b3eda96f7cb4ba31489401ca2bf09d60fc5dbf83a30384d0

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
12/12/2023, 16:45

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General

Target

tuc3.exe
Size

7.2MB
MD5

f63cf1ea135b2c538962afeb753cd765
SHA1

a882e51f7f5d1c7e3ae4ff175158769be68a280c
SHA256

7655628d4cf34b89b3eda96f7cb4ba31489401ca2bf09d60fc5dbf83a30384d0
SHA512

690d5c46d99be0fdd969026eeaabb4f58058cd4675cdac6fd8a2d1995ff3161c95bb9e93a8c3a2047b76426eeae629a8a0064e0aeee421d8e4a479c987276576
SSDEEP

196608:Dxm50EF70ZaWLZ97vnC8LpS7+bI9cpSzj:JEt0Zak7aIA7kSzj

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
4820	tuc3.tmp
1792	numgif.exe
2932	numgif.exe

Loads dropped DLL 3 IoCs

pid	Process
4820	tuc3.tmp
4820	tuc3.tmp
4820	tuc3.tmp

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	152.89.198.214
Destination IP	194.49.94.194
Destination IP	152.89.198.214

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 63 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\numGIF\bin\x86\is-69HUA.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\is-B4JHB.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\uninstall\is-KTHDV.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\stuff\is-QEUQJ.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-3U6QL.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-LJBJK.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-C6HTQ.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-D2L8S.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-587T6.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-TTOAK.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\plugins\internal\is-R1QAI.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\stuff\is-6VSKT.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-9DD3B.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-F138U.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-8SDKE.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-OFV6P.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-80H9K.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-Q34JM.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-2EBLJ.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-8U6C2.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-ALFMU.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-2MQ0K.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-HA3IG.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-QTAKV.tmp	tuc3.tmp
File opened for modification	C:\Program Files (x86)\numGIF\uninstall\unins000.dat	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-MSGR2.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-62J0A.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-UQG3J.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\stuff\is-3P00N.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\stuff\is-4T051.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-RIFPH.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-UGC8G.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-33J0B.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-KFNQQ.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-MS6LR.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\plugins\internal\is-0QFVN.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-1U2EK.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-0DOOU.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-3Q6FK.tmp	tuc3.tmp
File opened for modification	C:\Program Files (x86)\numGIF\numgif.exe	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-T7K9E.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-1QJBU.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-AOVH8.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-OLT5O.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-8F6HF.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-UFA31.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-902DB.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-LN0DC.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-MRVVK.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-Q2MVB.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-QDV2I.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-JRAGE.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\lessmsi\is-UPG8J.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-NSFN4.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-S84PE.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\uninstall\unins000.dat	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-SFG4I.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-TJM09.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-4QSDO.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-7PFJ2.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-U5G4S.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-TA7RQ.tmp	tuc3.tmp
File created	C:\Program Files (x86)\numGIF\bin\x86\is-6AS6U.tmp	tuc3.tmp

Runs net.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4820	tuc3.tmp

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 4820	404	tuc3.exe	87
PID 404 wrote to memory of 4820	404	tuc3.exe	87
PID 404 wrote to memory of 4820	404	tuc3.exe	87
PID 4820 wrote to memory of 3844	4820	tuc3.tmp	91
PID 4820 wrote to memory of 3844	4820	tuc3.tmp	91
PID 4820 wrote to memory of 3844	4820	tuc3.tmp	91
PID 4820 wrote to memory of 1792	4820	tuc3.tmp	93
PID 4820 wrote to memory of 1792	4820	tuc3.tmp	93
PID 4820 wrote to memory of 1792	4820	tuc3.tmp	93
PID 4820 wrote to memory of 2764	4820	tuc3.tmp	96
PID 4820 wrote to memory of 2764	4820	tuc3.tmp	96
PID 4820 wrote to memory of 2764	4820	tuc3.tmp	96
PID 4820 wrote to memory of 2932	4820	tuc3.tmp	95
PID 4820 wrote to memory of 2932	4820	tuc3.tmp	95
PID 4820 wrote to memory of 2932	4820	tuc3.tmp	95
PID 2764 wrote to memory of 3424	2764	net.exe	97
PID 2764 wrote to memory of 3424	2764	net.exe	97
PID 2764 wrote to memory of 3424	2764	net.exe	97

C:\Users\Admin\AppData\Local\Temp\tuc3.exe
"C:\Users\Admin\AppData\Local\Temp\tuc3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:404
- C:\Users\Admin\AppData\Local\Temp\is-3L2GM.tmp\tuc3.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-3L2GM.tmp\tuc3.tmp" /SL5="$E0048,7257737,121856,C:\Users\Admin\AppData\Local\Temp\tuc3.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4820
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query
    3⤵
    PID:3844
- - C:\Program Files (x86)\numGIF\numgif.exe
    "C:\Program Files (x86)\numGIF\numgif.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1792
- - C:\Program Files (x86)\numGIF\numgif.exe
    "C:\Program Files (x86)\numGIF\numgif.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2932
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 12
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2764
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 12
      4⤵
      PID:3424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\numGIF\numgif.exe

Filesize
2.1MB

MD5
57ced71d2e317eabb615aa41744d1b1f

SHA1
6cc65d30c5fd466c87947a037b4b334150cd07c6

SHA256
063e3ba1e7b81c595bcda4226b7258730c769626de660452e5aefc7f0ad45737

SHA512
2c76683fcacdbe5497fd042424f1ac4da0cd74f62f0516e1bc77487bce7fed98b21836582e6ed8eee157bf854bc550dec6e4697919cd21adf76ae400fcb98662

Download Submit
C:\Program Files (x86)\numGIF\numgif.exe

Filesize
1.8MB

MD5
89258fa9ec9ea8821b4d42a65545c2ac

SHA1
7d799757f87f333fc25ffe00061b0d78bf75309c

SHA256
e38e5887168531485b9d4d7f3de26eb6b992e2c5ab64164f3305069ae6d61434

SHA512
cd877a372af58c2d09a2e1f554a52bc43daf9714a9327d364f4fb6abc8b88b149cb4694e9625416f15ab899f928d38647cf1b5303108194e884f7a9311d72056

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-3L2GM.tmp\tuc3.tmp

Filesize
687KB

MD5
f448d7f4b76e5c9c3a4eaff16a8b9b73

SHA1
31808f1ffa84c954376975b7cdb0007e6b762488

SHA256
7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

SHA512
f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GBURT.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GBURT.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
memory/404-0-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/404-2-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/404-160-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download
memory/1792-155-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/1792-151-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/1792-152-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/1792-154-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-186-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-180-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-158-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-208-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-162-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-205-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-166-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-167-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-170-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-173-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-176-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-159-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-179-0x00000000008F0000-0x000000000098E000-memory.dmp

Filesize
632KB

Download
memory/2932-183-0x00000000008F0000-0x000000000098E000-memory.dmp

Filesize
632KB

Download
memory/2932-202-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-189-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-190-0x00000000008F0000-0x000000000098E000-memory.dmp

Filesize
632KB

Download
memory/2932-193-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-196-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/2932-199-0x0000000000400000-0x0000000000629000-memory.dmp

Filesize
2.2MB

Download
memory/4820-10-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/4820-163-0x0000000000540000-0x0000000000541000-memory.dmp

Filesize
4KB

Download
memory/4820-161-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download