eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0

Analysis

max time kernel
147s
max time network
155s
platform
windows7_x64
resource
win7-20220414-en
submitted
15-04-2022 12:54

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General

Target

eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0.exe
Size

557KB
MD5

a9c69fa0b7a1a2a72928c83bf48cea3e
SHA1

7cf88e28f6a0e12953a89aba86cc1dea8794f27e
SHA256

eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0
SHA512

de5e3403104d78951505c03e51c6ae7526612a844ebc4e989d4faf8bf8138fa9f3afcc39d80ac1d224dd1f95dfcd215cb12407273e90dc409e48908417513e5b

Score

8^/10

upx

Malware Config

Signatures

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
1816	msfonts.exe
1896	TZNlVAKZE10zbXRI.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x000700000001335e-87.dat	upx
behavioral1/files/0x000700000001335e-88.dat	upx
behavioral1/files/0x000700000001335e-90.dat	upx
behavioral1/files/0x000700000001335e-89.dat	upx
behavioral1/files/0x000700000001335e-92.dat	upx

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msfonts.lnk	msfonts.exe

Loads dropped DLL 6 IoCs

pid	Process
1696	cmd.exe
1816	msfonts.exe
1712	mscorsvw.exe
1712	mscorsvw.exe
1712	mscorsvw.exe
1712	mscorsvw.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1896	TZNlVAKZE10zbXRI.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1816 set thread context of 1712	1816	msfonts.exe	37
PID 1816 set thread context of 640	1816	msfonts.exe	41

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2012	msconfigs.exe
1816	msfonts.exe
1816	msfonts.exe
1816	msfonts.exe
1816	msfonts.exe
1816	msfonts.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1756	eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1756	eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0.exe
Token: SeDebugPrivilege	2012	msconfigs.exe
Token: SeDebugPrivilege	1816	msfonts.exe
Token: SeShutdownPrivilege	1896	TZNlVAKZE10zbXRI.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 2024	1756	eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0.exe	28
PID 1756 wrote to memory of 2024	1756	eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0.exe	28
PID 1756 wrote to memory of 2024	1756	eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0.exe	28
PID 1756 wrote to memory of 2024	1756	eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0.exe	28
PID 2024 wrote to memory of 2012	2024	cmd.exe	30
PID 2024 wrote to memory of 2012	2024	cmd.exe	30
PID 2024 wrote to memory of 2012	2024	cmd.exe	30
PID 2024 wrote to memory of 2012	2024	cmd.exe	30
PID 2012 wrote to memory of 640	2012	msconfigs.exe	32
PID 2012 wrote to memory of 640	2012	msconfigs.exe	32
PID 2012 wrote to memory of 640	2012	msconfigs.exe	32
PID 2012 wrote to memory of 640	2012	msconfigs.exe	32
PID 2012 wrote to memory of 1696	2012	msconfigs.exe	34
PID 2012 wrote to memory of 1696	2012	msconfigs.exe	34
PID 2012 wrote to memory of 1696	2012	msconfigs.exe	34
PID 2012 wrote to memory of 1696	2012	msconfigs.exe	34
PID 1696 wrote to memory of 1816	1696	cmd.exe	36
PID 1696 wrote to memory of 1816	1696	cmd.exe	36
PID 1696 wrote to memory of 1816	1696	cmd.exe	36
PID 1696 wrote to memory of 1816	1696	cmd.exe	36
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1816 wrote to memory of 1712	1816	msfonts.exe	37
PID 1712 wrote to memory of 1896	1712	mscorsvw.exe	40
PID 1712 wrote to memory of 1896	1712	mscorsvw.exe	40
PID 1712 wrote to memory of 1896	1712	mscorsvw.exe	40
PID 1712 wrote to memory of 1896	1712	mscorsvw.exe	40
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41
PID 1816 wrote to memory of 640	1816	msfonts.exe	41

C:\Users\Admin\AppData\Local\Temp\eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0.exe
"C:\Users\Admin\AppData\Local\Temp\eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0.exe"
1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Local\Temp\msconfigs.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2024
- - C:\Users\Admin\AppData\Local\Temp\msconfigs.exe
    "C:\Users\Admin\AppData\Local\Temp\msconfigs.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2012
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\msconfigs.exe" "C:\Users\Admin\AppData\Roaming\msfonts.exe"
      4⤵
      PID:640
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\AppData\Roaming\msfonts.exe"
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:1696
    - - C:\Users\Admin\AppData\Roaming\msfonts.exe
        
        "C:\Users\Admin\AppData\Roaming\msfonts.exe"
        5⤵
        Executes dropped EXE
        Drops startup file
        Loads dropped DLL
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1816
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe"
        6⤵
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:1712
        
        C:\Users\Admin\AppData\Local\Temp\TZNlVAKZE10zbXRI.exe
        
        "C:\Users\Admin\AppData\Local\Temp\TZNlVAKZE10zbXRI.exe"
        7⤵
        Executes dropped EXE
        Suspicious use of NtSetInformationThreadHideFromDebugger
        Suspicious use of AdjustPrivilegeToken
        
        PID:1896
      - C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe"
        6⤵
        
        PID:640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\TZNlVAKZE10zbXRI.exe

Filesize
5.6MB

MD5
82994b5f5726565ab094aca586ca25ac

SHA1
5ef88f5e534eefb0dde10cfdce0d977075c40d1a

SHA256
f0428acc40b7ec72a6d1409c3adc1f62bead8f0ef9c5ee47d5f92c35e0bc18bc

SHA512
23d19fefea22af46425a0d9e0a0470cea9612681e28c43affe0f2a02ee40683cff62c6728cac59a046f962d7a605c6a4ccf0997570b5898d3cfd7b73e1ce73ac

Download Submit
C:\Users\Admin\AppData\Roaming\msfonts.exe

Filesize
557KB

MD5
a9c69fa0b7a1a2a72928c83bf48cea3e

SHA1
7cf88e28f6a0e12953a89aba86cc1dea8794f27e

SHA256
eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0

SHA512
de5e3403104d78951505c03e51c6ae7526612a844ebc4e989d4faf8bf8138fa9f3afcc39d80ac1d224dd1f95dfcd215cb12407273e90dc409e48908417513e5b

Download Submit
C:\Users\Admin\AppData\Roaming\msfonts.exe

Filesize
557KB

MD5
a9c69fa0b7a1a2a72928c83bf48cea3e

SHA1
7cf88e28f6a0e12953a89aba86cc1dea8794f27e

SHA256
eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0

SHA512
de5e3403104d78951505c03e51c6ae7526612a844ebc4e989d4faf8bf8138fa9f3afcc39d80ac1d224dd1f95dfcd215cb12407273e90dc409e48908417513e5b

Download Submit
\Users\Admin\AppData\Local\Temp\TZNlVAKZE10zbXRI.exe

Filesize
5.6MB

MD5
82994b5f5726565ab094aca586ca25ac

SHA1
5ef88f5e534eefb0dde10cfdce0d977075c40d1a

SHA256
f0428acc40b7ec72a6d1409c3adc1f62bead8f0ef9c5ee47d5f92c35e0bc18bc

SHA512
23d19fefea22af46425a0d9e0a0470cea9612681e28c43affe0f2a02ee40683cff62c6728cac59a046f962d7a605c6a4ccf0997570b5898d3cfd7b73e1ce73ac

Download Submit
\Users\Admin\AppData\Local\Temp\TZNlVAKZE10zbXRI.exe

Filesize
5.6MB

MD5
82994b5f5726565ab094aca586ca25ac

SHA1
5ef88f5e534eefb0dde10cfdce0d977075c40d1a

SHA256
f0428acc40b7ec72a6d1409c3adc1f62bead8f0ef9c5ee47d5f92c35e0bc18bc

SHA512
23d19fefea22af46425a0d9e0a0470cea9612681e28c43affe0f2a02ee40683cff62c6728cac59a046f962d7a605c6a4ccf0997570b5898d3cfd7b73e1ce73ac

Download Submit
\Users\Admin\AppData\Local\Temp\TZNlVAKZE10zbXRI.exe

Filesize
5.6MB

MD5
82994b5f5726565ab094aca586ca25ac

SHA1
5ef88f5e534eefb0dde10cfdce0d977075c40d1a

SHA256
f0428acc40b7ec72a6d1409c3adc1f62bead8f0ef9c5ee47d5f92c35e0bc18bc

SHA512
23d19fefea22af46425a0d9e0a0470cea9612681e28c43affe0f2a02ee40683cff62c6728cac59a046f962d7a605c6a4ccf0997570b5898d3cfd7b73e1ce73ac

Download Submit
\Users\Admin\AppData\Local\Temp\TZNlVAKZE10zbXRI.exe

Filesize
5.6MB

MD5
82994b5f5726565ab094aca586ca25ac

SHA1
5ef88f5e534eefb0dde10cfdce0d977075c40d1a

SHA256
f0428acc40b7ec72a6d1409c3adc1f62bead8f0ef9c5ee47d5f92c35e0bc18bc

SHA512
23d19fefea22af46425a0d9e0a0470cea9612681e28c43affe0f2a02ee40683cff62c6728cac59a046f962d7a605c6a4ccf0997570b5898d3cfd7b73e1ce73ac

Download Submit
\Users\Admin\AppData\Roaming\msfonts.exe

Filesize
557KB

MD5
a9c69fa0b7a1a2a72928c83bf48cea3e

SHA1
7cf88e28f6a0e12953a89aba86cc1dea8794f27e

SHA256
eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0

SHA512
de5e3403104d78951505c03e51c6ae7526612a844ebc4e989d4faf8bf8138fa9f3afcc39d80ac1d224dd1f95dfcd215cb12407273e90dc409e48908417513e5b

Download Submit
\Users\Admin\AppData\Roaming\msfonts.exe

Filesize
557KB

MD5
a9c69fa0b7a1a2a72928c83bf48cea3e

SHA1
7cf88e28f6a0e12953a89aba86cc1dea8794f27e

SHA256
eef638c058f44481d29fb8b763af94001c632cea7b8b801218de99b8a0750ed0

SHA512
de5e3403104d78951505c03e51c6ae7526612a844ebc4e989d4faf8bf8138fa9f3afcc39d80ac1d224dd1f95dfcd215cb12407273e90dc409e48908417513e5b

Download Submit
memory/640-110-0x0000000000080000-0x00000000000BF000-memory.dmp

Filesize
252KB

Download
memory/640-115-0x0000000000080000-0x00000000000BF000-memory.dmp

Filesize
252KB

Download
memory/1712-85-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-86-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-71-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-72-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-74-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-76-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-77-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-78-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-79-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-81-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/1712-84-0x00000000753B1000-0x00000000753B3000-memory.dmp

Filesize
8KB

Download
memory/1756-54-0x0000000000F00000-0x0000000000F92000-memory.dmp

Filesize
584KB

Download
memory/1756-56-0x00000000004F0000-0x0000000000514000-memory.dmp

Filesize
144KB

Download
memory/1756-55-0x0000000000250000-0x0000000000270000-memory.dmp

Filesize
128KB

Download
memory/1816-68-0x0000000000450000-0x0000000000474000-memory.dmp

Filesize
144KB

Download
memory/1816-70-0x0000000000960000-0x0000000000972000-memory.dmp

Filesize
72KB

Download
memory/1816-67-0x00000000012B0000-0x0000000001342000-memory.dmp

Filesize
584KB

Download
memory/2012-60-0x0000000000AB0000-0x0000000000ABC000-memory.dmp

Filesize
48KB

Download
memory/2012-59-0x0000000000F00000-0x0000000000F92000-memory.dmp

Filesize
584KB

Download