2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7

General

Target

2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.exe
Size

3.3MB
MD5

e9c91582e414d1ca64d5dd5cf1022c81
SHA1

ee9c77b9b988a469730a756161499802c7a092c3
SHA256

2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7
SHA512

b364f45ecf9dd96b0a2a60de645639bc45f6d6f67d4190855846a1203e97b86fa891fbb9f62f33be506583b548117ad0ac5771251c05b399b0415abfa91e0dff
SSDEEP

98304:VsOoX6Vy6JPvMmZQb8Lny4UqjRynQzKkxbH6dlE:QX6o/mZcAy4Xj+Gfwdu

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
4780	mpeg4codec.exe
2704	mpeg4codec.exe

Loads dropped DLL 3 IoCs

pid	Process
1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.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	185.237.206.223

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 19 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-T1C84.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-9UMPV.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-4TDGP.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-3RVS1.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-NTGJA.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\UIText\is-C3J7F.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-7L2IP.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File opened for modification	C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\unins000.dat	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-M8SQH.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-E2U28.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-LQSN0.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-UV49P.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File opened for modification	C:\Program Files (x86)\Common Files\BVSMPEG4\unins000.dat	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-L8OTH.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\UIText\is-R95GF.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-ODGKS.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-ECMK5.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
File created	C:\Program Files (x86)\Common Files\BVSMPEG4\is-BIQK7.tmp	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Runs net.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3232 wrote to memory of 1300	3232	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.exe	84
PID 3232 wrote to memory of 1300	3232	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.exe	84
PID 3232 wrote to memory of 1300	3232	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.exe	84
PID 1300 wrote to memory of 3724	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	88
PID 1300 wrote to memory of 3724	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	88
PID 1300 wrote to memory of 3724	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	88
PID 1300 wrote to memory of 4780	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	90
PID 1300 wrote to memory of 4780	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	90
PID 1300 wrote to memory of 4780	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	90
PID 1300 wrote to memory of 4844	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	93
PID 1300 wrote to memory of 4844	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	93
PID 1300 wrote to memory of 4844	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	93
PID 1300 wrote to memory of 2704	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	92
PID 1300 wrote to memory of 2704	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	92
PID 1300 wrote to memory of 2704	1300	2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp	92
PID 4844 wrote to memory of 4976	4844	net.exe	94
PID 4844 wrote to memory of 4976	4844	net.exe	94
PID 4844 wrote to memory of 4976	4844	net.exe	94

C:\Users\Admin\AppData\Local\Temp\2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.exe
"C:\Users\Admin\AppData\Local\Temp\2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3232
- C:\Users\Admin\AppData\Local\Temp\is-LV707.tmp\2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-LV707.tmp\2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp" /SL5="$90058,3245822,76288,C:\Users\Admin\AppData\Local\Temp\2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1300
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\system32\schtasks.exe" /Query
    3⤵
    PID:3724
- - C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe
    "C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4780
- - C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe
    "C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2704
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 28
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4844
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 28
      4⤵
      PID:4976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe

Filesize
3.8MB

MD5
a863cd83ad9b26cf86d9a916a5505134

SHA1
465f99123bfde43b7d5e841bb445f4428a9c63ae

SHA256
1e5366ce3d44c99dde2efbc19ef660beddffe65bd98a7b02e25f91f27b3c3805

SHA512
1879c5f2249be0e5dc97ecb4c73322e63c77725c8629efcefb33b71fe1f7f1f7b3a7696d311a5eac454ce4c8b5f013bdef23db30cc1ebd18aea75ce32c08a660

Download Submit
C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe

Filesize
3.8MB

MD5
a863cd83ad9b26cf86d9a916a5505134

SHA1
465f99123bfde43b7d5e841bb445f4428a9c63ae

SHA256
1e5366ce3d44c99dde2efbc19ef660beddffe65bd98a7b02e25f91f27b3c3805

SHA512
1879c5f2249be0e5dc97ecb4c73322e63c77725c8629efcefb33b71fe1f7f1f7b3a7696d311a5eac454ce4c8b5f013bdef23db30cc1ebd18aea75ce32c08a660

Download Submit
C:\Program Files (x86)\Common Files\BVSMPEG4\mpeg4codec.exe

Filesize
3.8MB

MD5
a863cd83ad9b26cf86d9a916a5505134

SHA1
465f99123bfde43b7d5e841bb445f4428a9c63ae

SHA256
1e5366ce3d44c99dde2efbc19ef660beddffe65bd98a7b02e25f91f27b3c3805

SHA512
1879c5f2249be0e5dc97ecb4c73322e63c77725c8629efcefb33b71fe1f7f1f7b3a7696d311a5eac454ce4c8b5f013bdef23db30cc1ebd18aea75ce32c08a660

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

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

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LV707.tmp\2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp

Filesize
683KB

MD5
f507ce43ea08d1721816ad4b0e090f50

SHA1
e4f02bcd410bddabea4c741838d9a88386547629

SHA256
d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

SHA512
37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LV707.tmp\2ef9e73f101529a0b061af3674d8b21b7ce5e894c43f7d173d163fb45ffc05e7.tmp

Filesize
683KB

MD5
f507ce43ea08d1721816ad4b0e090f50

SHA1
e4f02bcd410bddabea4c741838d9a88386547629

SHA256
d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

SHA512
37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

Download Submit
memory/1300-6-0x0000000002100000-0x0000000002101000-memory.dmp

Filesize
4KB

Download
memory/1300-72-0x0000000002100000-0x0000000002101000-memory.dmp

Filesize
4KB

Download
memory/1300-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2704-95-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-102-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-67-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-68-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-118-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-115-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-71-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-112-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-75-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-76-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-77-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-80-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-83-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-86-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-90-0x0000000000A60000-0x0000000000B0D000-memory.dmp

Filesize
692KB

Download
memory/2704-89-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-108-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-98-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/2704-99-0x0000000000A60000-0x0000000000B0D000-memory.dmp

Filesize
692KB

Download
memory/2704-105-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/3232-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3232-69-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4780-64-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/4780-59-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download
memory/4780-60-0x0000000000400000-0x00000000007D4000-memory.dmp

Filesize
3.8MB

Download

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