3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299

General

Target

3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe
Size

2.7MB
MD5

f6486a530d39541ddd6d9aa8fda39efb
SHA1

f98c06a6d964599124f607dcb450aa30e1dedf6e
SHA256

3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299
SHA512

90ac1dc6bca6d0dcde037fe6a991a4b4f9b24f88427c70f4009da0ff89615e0ad92a26a86f92071598943be030e716e1c60c9581afcde3b837ffdbf07ff6d014
SSDEEP

49152:WrXdF4A9mZwpwh36IHASx2MxxEE98ZG+4LtLwhv/IqjvF:WrXdFeh36IHASx2MfEEVl/q

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe

Executes dropped EXE 2 IoCs

pid	Process
5072	tgfnwmrkyh.exe
1496	tgfnwmrkyh.tmp

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 10 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\MYPGNotes\unins000.dat	tgfnwmrkyh.tmp
File created	C:\Program Files (x86)\MYPGNotes\is-937MC.tmp	tgfnwmrkyh.tmp
File created	C:\Program Files (x86)\MYPGNotes\is-CHT6K.tmp	tgfnwmrkyh.tmp
File created	C:\Program Files (x86)\MYPGNotes\is-GK5K5.tmp	tgfnwmrkyh.tmp
File opened for modification	C:\Program Files (x86)\MYPGNotes\unins000.dat	tgfnwmrkyh.tmp
File opened for modification	C:\Program Files (x86)\MYPGNotes\AppleNote.exe	tgfnwmrkyh.tmp
File opened for modification	C:\Program Files (x86)\MYPGNotes\Qt5Concurrent.dll	tgfnwmrkyh.tmp
File created	C:\Program Files (x86)\MYPGNotes\is-PCJBJ.tmp	tgfnwmrkyh.tmp
File created	C:\Program Files (x86)\MYPGNotes\is-KGVR4.tmp	tgfnwmrkyh.tmp
File created	C:\Program Files (x86)\MYPGNotes\is-S48HO.tmp	tgfnwmrkyh.tmp

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tgfnwmrkyh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tgfnwmrkyh.tmp

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
396	3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe
396	3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe
396	3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe
396	3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe
1496	tgfnwmrkyh.tmp
1496	tgfnwmrkyh.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1496	tgfnwmrkyh.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 396 wrote to memory of 1064	396	3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe	84
PID 396 wrote to memory of 1064	396	3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe	84
PID 396 wrote to memory of 1064	396	3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe	84
PID 1064 wrote to memory of 5072	1064	cmd.exe	87
PID 1064 wrote to memory of 5072	1064	cmd.exe	87
PID 1064 wrote to memory of 5072	1064	cmd.exe	87
PID 5072 wrote to memory of 1496	5072	tgfnwmrkyh.exe	89
PID 5072 wrote to memory of 1496	5072	tgfnwmrkyh.exe	89
PID 5072 wrote to memory of 1496	5072	tgfnwmrkyh.exe	89

C:\Users\Admin\AppData\Local\Temp\3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe
"C:\Users\Admin\AppData\Local\Temp\3b8ff2b8bbd9d56a3091740f19b58114d35db44848dce67db685c864b5fc3299.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:396
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\tgfnwmrkyh.exe" /VERYSILENT
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1064
- - C:\Users\Admin\AppData\Local\Temp\tgfnwmrkyh.exe
    "C:\Users\Admin\AppData\Local\Temp\tgfnwmrkyh.exe" /VERYSILENT
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5072
  - - C:\Users\Admin\AppData\Local\Temp\is-EJ44L.tmp\tgfnwmrkyh.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-EJ44L.tmp\tgfnwmrkyh.tmp" /SL5="$6024A,232785,54272,C:\Users\Admin\AppData\Local\Temp\tgfnwmrkyh.exe" /VERYSILENT
      4⤵
      Executes dropped EXE
      Drops file in Program Files directory
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of FindShellTrayWindow
      PID:1496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-EJ44L.tmp\tgfnwmrkyh.tmp

Filesize
900KB

MD5
f8b110dc2063d3b29502aa7042d26122

SHA1
1a0fd3db79eadc1ce714f6267d476ddbec0f5e79

SHA256
e8730b0bf8f94cbb8babbfefb32cef8e8d19ec823f28c33a7d48c78589710762

SHA512
f3125d3f575aff68105ebb3eadbce30547d34e12237d8ebbc555c6fe12bcc0a5ea85a38e26f2900d70af70ec07efde3b8cd65dc0fdada637496531245ea5052f

Download Submit
C:\Users\Admin\AppData\Local\Temp\tgfnwmrkyh.exe

Filesize
526KB

MD5
9beea33ea128fd25ad509ae7ff7bcff3

SHA1
3a87a124b47d68bf8eb1d1a4f9695fb2b2a52660

SHA256
e0634bc21490c472b233aaec047438feae557f0d57ea5b78b3b48260916e2b4e

SHA512
292996177bbb804ea3f6ad51fdb74707f1a1a35d50d8ae7b082d88cbb476bae1a883133c9e1dc4cefce78bc71f8d65276e5cdaeeef03088bc54beb41269dc5b3

Download Submit
memory/396-0-0x0000000010000000-0x0000000010297000-memory.dmp

Filesize
2.6MB

Download
memory/1496-20-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/1496-44-0x0000000000400000-0x00000000004F4000-memory.dmp

Filesize
976KB

Download
memory/5072-10-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/5072-8-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5072-45-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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