gcleaner | 286441be2c6ccc4eee4a61fe5cfb4a29ca56bededf4b425166deaa19d066cc1e

Analysis

max time kernel
68s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06/02/2023, 17:46

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General

Target
file.exe
Size 2.0MB
Sample230206-wb98ysfb49
SHA256 286441be2c6ccc4eee4a61fe5cfb4a29ca56bededf4b425166deaa19d066cc1e
MD5 e2f89099d5890612364fad8e39be4e24
SHA1 a42f0daa3fe37fb481d9ff80008924f394cd48aa
SHA512 47cfbf5b33e7e3c78c272958fd6405def8abcb93215165328cff5aa5956e2d36c271e5bbf72c00ef8206205a5e840fa79c53e2543c53ddd819ac8cca61981cbc
SSDEEP 49152:nZjfWgnj2DPsRl3mef5okNEtcAGlH/y5x8LCgv2MR:Zb5GMoO8cAGlH/y5Cv2MR
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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	FRec26.exe

Executes dropped EXE 3 IoCs

pid	Process
4828	file.tmp
2384	FRec26.exe
3596	79ll5fYm.exe

Loads dropped DLL 1 IoCs

pid	Process
4828	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 created	C:\Program Files (x86)\FHLsoftFR\FRec26\is-ILDI4.tmp	file.tmp
File created	C:\Program Files (x86)\FHLsoftFR\FRec26\is-3TKRR.tmp	file.tmp
File created	C:\Program Files (x86)\FHLsoftFR\FRec26\is-D0CHA.tmp	file.tmp
File created	C:\Program Files (x86)\FHLsoftFR\FRec26\data\is-3R4II.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FHLsoftFR\FRec26\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FHLsoftFR\FRec26\unins000.dat	file.tmp
File created	C:\Program Files (x86)\FHLsoftFR\FRec26\is-469S8.tmp	file.tmp
File created	C:\Program Files (x86)\FHLsoftFR\FRec26\is-RQ9PN.tmp	file.tmp
File opened for modification	C:\Program Files (x86)\FHLsoftFR\FRec26\FRec26.exe	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
1336	taskkill.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2384	FRec26.exe
2384	FRec26.exe
2384	FRec26.exe
2384	FRec26.exe
2384	FRec26.exe
2384	FRec26.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2384	FRec26.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1336	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4912 wrote to memory of 4828	4912	file.exe	83
PID 4912 wrote to memory of 4828	4912	file.exe	83
PID 4912 wrote to memory of 4828	4912	file.exe	83
PID 4828 wrote to memory of 2384	4828	file.tmp	84
PID 4828 wrote to memory of 2384	4828	file.tmp	84
PID 4828 wrote to memory of 2384	4828	file.tmp	84
PID 2384 wrote to memory of 3596	2384	FRec26.exe	85
PID 2384 wrote to memory of 3596	2384	FRec26.exe	85
PID 2384 wrote to memory of 3596	2384	FRec26.exe	85
PID 2384 wrote to memory of 4440	2384	FRec26.exe	93
PID 2384 wrote to memory of 4440	2384	FRec26.exe	93
PID 2384 wrote to memory of 4440	2384	FRec26.exe	93
PID 4440 wrote to memory of 1336	4440	cmd.exe	95
PID 4440 wrote to memory of 1336	4440	cmd.exe	95
PID 4440 wrote to memory of 1336	4440	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4912
- C:\Users\Admin\AppData\Local\Temp\is-IG7VB.tmp\file.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-IG7VB.tmp\file.tmp" /SL5="$80030,1851651,103936,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:4828
- - C:\Program Files (x86)\FHLsoftFR\FRec26\FRec26.exe
    "C:\Program Files (x86)\FHLsoftFR\FRec26\FRec26.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of WriteProcessMemory
    PID:2384
  - - C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\79ll5fYm.exe
      4⤵
      Executes dropped EXE
      PID:3596
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im "FRec26.exe" /f & erase "C:\Program Files (x86)\FHLsoftFR\FRec26\FRec26.exe" & exit
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4440
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /im "FRec26.exe" /f
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:1336

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

FRec26.exe

Path C:\Program Files (x86)\FHLsoftFR\FRec26\FRec26.exe
Size 1.9MB
SHA256 764d0f7bad67c3a0876411f78e0293032ed35eea5158e125debe5daf3b02447d
MD5 c3fc99d9cc224e940b843a082960df13
SHA1 c18aafdf8b8d88a3f392ac5a2dcfaac8251205c7
SHA512 9e6e799a13208fa16a9f104ca6a9b7a0a1e9078af9320977a034bdf492664095f43349d951dfff7e66b3e8bdbeff56721e5d2fcfb05515a01062cd5d3d007983
SSDEEP 49152:hurgurN+gurDurWurQuruurXurvTBs/33TJJdYWysj:hurgurogurDurWurQuruurXurvTBsPjh
MD5 SHA1 SHA512 SSDEEP

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FRec26.exe

Path C:\Program Files (x86)\FHLsoftFR\FRec26\FRec26.exe
Size 1.9MB
SHA256 764d0f7bad67c3a0876411f78e0293032ed35eea5158e125debe5daf3b02447d
MD5 c3fc99d9cc224e940b843a082960df13
SHA1 c18aafdf8b8d88a3f392ac5a2dcfaac8251205c7
SHA512 9e6e799a13208fa16a9f104ca6a9b7a0a1e9078af9320977a034bdf492664095f43349d951dfff7e66b3e8bdbeff56721e5d2fcfb05515a01062cd5d3d007983
SSDEEP 49152:hurgurN+gurDurWurQuruurXurvTBs/33TJJdYWysj:hurgurogurDurWurQuruurXurvTBsPjh
MD5 SHA1 SHA512 SSDEEP

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file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-IG7VB.tmp\file.tmp
Size 696KB
SHA256 229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d
MD5 d76329b30db65f61d55b20f36b56da26
SHA1 5e4c77b723ae8f05b3ae6afeee735a4355f00663
SHA512 a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d
SSDEEP 12288:9QtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kS0:+tCUA4arPEn37TzH7A6nw9yzeESUFWH/
MD5 SHA1 SHA512 SSDEEP

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file.tmp

Path C:\Users\Admin\AppData\Local\Temp\is-IG7VB.tmp\file.tmp
Size 696KB
SHA256 229fbcb11ee7d1f082b6411610e95f726eec4e6737e6b6392719df4f0fe3fa1d
MD5 d76329b30db65f61d55b20f36b56da26
SHA1 5e4c77b723ae8f05b3ae6afeee735a4355f00663
SHA512 a291aed0897315e88b6378b1db10ada05bda8c1eccaf73de23f409fe61860ebd1dbb422063e00996584d3b4b100122931d5bbab54a88951706d75efcc660f70d
SSDEEP 12288:9QtLeYXPEv4arPEn37TzH7A6p3xxu9yz/eERMY1VLJrNufs9RZM2GHOQyD362kS0:+tCUA4arPEn37TzH7A6nw9yzeESUFWH/
MD5 SHA1 SHA512 SSDEEP

Submit Download

_iscrypt.dll

Path C:\Users\Admin\AppData\Local\Temp\is-Q44HA.tmp\_isetup\_iscrypt.dll
Size 2KB
SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
MD5 a69559718ab506675e907fe49deb71e9
SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
MD5 SHA1 SHA512

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79ll5fYm.exe

Path C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\79ll5fYm.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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79ll5fYm.exe

Path C:\Users\Admin\AppData\Roaming\{6cebb340-6208-11ed-bf50-806e6f6e6963}\79ll5fYm.exe
Size 72KB
SHA256 27ae813ceff8aa56e9fa68c8e50bb1c6c4a01636015eac4bd8bf444afb7020d6
MD5 3fb36cb0b7172e5298d2992d42984d06
SHA1 439827777df4a337cbb9fa4a4640d0d3fa1738b7
SHA512 6b39cb32d77200209a25080ac92bc71b1f468e2946b651023793f3585ee6034adc70924dbd751cf4a51b5e71377854f1ab43c2dd287d4837e7b544ff886f470c
SSDEEP 1536:bvUpDLxyxA14o3/M238r6+XfHAgbqmE8MpKdwuasZLUM7DsWlXcdyZgfmi:WDLZKa/MtXfHAgbqmEtxsfmyZgfmi
MD5 SHA1 SHA512 SSDEEP

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memory/2384-148-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/2384-142-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/2384-143-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/2384-144-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/2384-149-0x0000000010000000-0x000000001001B000-memory.dmp

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memory/2384-154-0x0000000000400000-0x00000000013E8000-memory.dmp

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memory/4912-138-0x0000000000400000-0x0000000000420000-memory.dmp

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memory/4912-132-0x0000000000400000-0x0000000000420000-memory.dmp

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memory/4912-155-0x0000000000400000-0x0000000000420000-memory.dmp

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