gcleaner | b72ce4db5ea2bf7473198afe403d083ccd63473ce4f8f61af48284e1d18ccdf3

Analysis

max time kernel
91s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
17/02/2023, 06:49

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General

Target
file.exe
Size 2.8MB
Sample230217-hlb71sdg3x
SHA256 b72ce4db5ea2bf7473198afe403d083ccd63473ce4f8f61af48284e1d18ccdf3
MD5 533c7de79274389aff3ca5caae01f605
SHA1 852ae9834a5e03f4672644b39c6d0496db68324f
SHA512 644f27afdde7a8bc154553628aad1f30506d985eee307a6671c24a6ec3337e6b0cf7b6d368cf111b68e43fdb14a4c89fdadb1a365db4327bdcc1766c4fac1bd4
SSDEEP 49152:vNWpfLNErmyYPLAS4cnw2EfgsjLcpsO/rznxWBD8EJBkeX5sSHqszkaEZWCf+Ql3:VKESyYPLrLw2EotxMDce+SKszo/llv2Y
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner discovery loader

Malware Config

Extracted

Family

gcleaner

45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	FRec217.exe

Executes dropped EXE 3 IoCs

pid	Process
4488	file.tmp
4868	FRec217.exe
1476	IWTLVp.exe

Loads dropped DLL 3 IoCs

pid	Process
4488	file.tmp
4488	file.tmp
4488	file.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 9 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\FHWsoftFR\FRec217\unins000.dat	file.tmp
File opened for modification	C:\Program Files (x86)\FHWsoftFR\FRec217\FRec217.exe	file.tmp
File created	C:\Program Files (x86)\FHWsoftFR\FRec217\is-NJ887.tmp	file.tmp
File created	C:\Program Files (x86)\FHWsoftFR\FRec217\is-ISEBB.tmp	file.tmp
File created	C:\Program Files (x86)\FHWsoftFR\FRec217\is-R5DC3.tmp	file.tmp
File created	C:\Program Files (x86)\FHWsoftFR\FRec217\data\is-9IJ65.tmp	file.tmp
File created	C:\Program Files (x86)\FHWsoftFR\FRec217\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FHWsoftFR\FRec217\is-4SP86.tmp	file.tmp
File created	C:\Program Files (x86)\FHWsoftFR\FRec217\is-NP6NL.tmp	file.tmp

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
1300	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4868	FRec217.exe
4868	FRec217.exe
4868	FRec217.exe
4868	FRec217.exe
4868	FRec217.exe
4868	FRec217.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1300	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3044 wrote to memory of 4488	3044	file.exe	81
PID 3044 wrote to memory of 4488	3044	file.exe	81
PID 3044 wrote to memory of 4488	3044	file.exe	81
PID 4488 wrote to memory of 4868	4488	file.tmp	82
PID 4488 wrote to memory of 4868	4488	file.tmp	82
PID 4488 wrote to memory of 4868	4488	file.tmp	82
PID 4868 wrote to memory of 1476	4868	FRec217.exe	83
PID 4868 wrote to memory of 1476	4868	FRec217.exe	83
PID 4868 wrote to memory of 1476	4868	FRec217.exe	83
PID 4868 wrote to memory of 852	4868	FRec217.exe	91
PID 4868 wrote to memory of 852	4868	FRec217.exe	91
PID 4868 wrote to memory of 852	4868	FRec217.exe	91
PID 852 wrote to memory of 1300	852	cmd.exe	93
PID 852 wrote to memory of 1300	852	cmd.exe	93
PID 852 wrote to memory of 1300	852	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3044
- C:\Users\Admin\AppData\Local\Temp\is-U4NFC.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-U4NFC.tmp\file.tmp" /SL5="$8004A,2682253,192000,C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4488
- - C:\Program Files (x86)\FHWsoftFR\FRec217\FRec217.exe
    "C:\Program Files (x86)\FHWsoftFR\FRec217\FRec217.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4868
  - - C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\IWTLVp.exe
      4⤵
      Executes dropped EXE
      PID:1476
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec217.exe" /f & erase "C:\Program Files (x86)\FHWsoftFR\FRec217\FRec217.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:852
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec217.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1300

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

FRec217.exe

Path C:\Program Files (x86)\FHWsoftFR\FRec217\FRec217.exe
Size 2.8MB
SHA256 060b6e3d55f203d65630074f1f0ccd4556a1885e8cd18a2b83eb059a2d684d68
MD5 1e26cfeaf30e3056b333c109f48fb57b
SHA1 ab71c60e1fb33ce4698e2562dd2db555aba6717d
SHA512 11e87bb72080ef4a6a33d50aadb103533555d32545e7179bada72ac71f09487177f59f0eb109dce5e950e1b3d5bdf7b10c8acdf9bba6f0d6c352097188716e39
SSDEEP 24576:1yzlwxPI/uGdL6Iug5VCSrhtfO4tqLg7BZbCc3nxAO6H+pbBh/lVUncf/f9eREEM:1yzuxg/uGdLJug5VjtfN53nP6HubJ955
MD5 SHA1 SHA512 SSDEEP

Submit Download

FRec217.exe

Path C:\Program Files (x86)\FHWsoftFR\FRec217\FRec217.exe
Size 2.8MB
SHA256 060b6e3d55f203d65630074f1f0ccd4556a1885e8cd18a2b83eb059a2d684d68
MD5 1e26cfeaf30e3056b333c109f48fb57b
SHA1 ab71c60e1fb33ce4698e2562dd2db555aba6717d
SHA512 11e87bb72080ef4a6a33d50aadb103533555d32545e7179bada72ac71f09487177f59f0eb109dce5e950e1b3d5bdf7b10c8acdf9bba6f0d6c352097188716e39
SSDEEP 24576:1yzlwxPI/uGdL6Iug5VCSrhtfO4tqLg7BZbCc3nxAO6H+pbBh/lVUncf/f9eREEM:1yzuxg/uGdLJug5VjtfN53nP6HubJ955
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

Path C:\Users\Admin\AppData\Local\Temp\is-MIBTI.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

Submit Download

_isdecmp.dll

Path C:\Users\Admin\AppData\Local\Temp\is-MIBTI.tmp\_isetup\_isdecmp.dll
Size 13KB
SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
MD5 a813d18268affd4763dde940246dc7e5
SHA1 c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA512 b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
SSDEEP 384:BXvhMwoSitz/bjx7yxnbdn+EHvbsHoOODCg:BZ7FEAbd+EDsIO
MD5 SHA1 SHA512 SSDEEP

Submit Download

_isdecmp.dll

Path C:\Users\Admin\AppData\Local\Temp\is-MIBTI.tmp\_isetup\_isdecmp.dll
Size 13KB
SHA256 e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64
MD5 a813d18268affd4763dde940246dc7e5
SHA1 c7366e1fd925c17cc6068001bd38eaef5b42852f
SHA512 b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4
SSDEEP 384:BXvhMwoSitz/bjx7yxnbdn+EHvbsHoOODCg:BZ7FEAbd+EDsIO
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-U4NFC.tmp\file.tmp
Size 696KB
SHA256 229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d
MD5 d76329b30db65f61d55b20f36b56da26
SHA1 5e4c77b723ae8f05b3ae6afeee735a4355f00663
SHA512 a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d
SSDEEP 12288:9QtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kS0:+tCUA4arPEn37TzH7A6nw9yzeESUFWH/
MD5 SHA1 SHA512 SSDEEP

Submit Download

file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-U4NFC.tmp\file.tmp
Size 696KB
SHA256 229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d
MD5 d76329b30db65f61d55b20f36b56da26
SHA1 5e4c77b723ae8f05b3ae6afeee735a4355f00663
SHA512 a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d
SSDEEP 12288:9QtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kS0:+tCUA4arPEn37TzH7A6nw9yzeESUFWH/
MD5 SHA1 SHA512 SSDEEP

Submit Download

IWTLVp.exe

Path C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\IWTLVp.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

IWTLVp.exe

Path C:\Users\Admin\AppData\Roaming\{d6dc608d-2a27-11ed-a0e3-806e6f6e6963}\IWTLVp.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/3044-132-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3044-137-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3044-153-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/3044-158-0x0000000000400000-0x0000000000436000-memory.dmp

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memory/4488-140-0x0000000003201000-0x0000000003203000-memory.dmp

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memory/4868-150-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/4868-146-0x0000000000400000-0x00000000014D3000-memory.dmp

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memory/4868-154-0x0000000000400000-0x00000000014D3000-memory.dmp

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memory/4868-145-0x0000000000400000-0x00000000014D3000-memory.dmp

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memory/4868-157-0x0000000000400000-0x00000000014D3000-memory.dmp

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